Opera's Settings File Explained

This document contains information about Opera's configuration options.

operaprefs.ini is an initialization file for Opera, essentially a settings file that specifies most of the user preferences. When you alter your preferences within the Opera user interface, this file is automatically modified and saved.

This document was last updated for Opera 11.60.

opera:config

Opera also has an integrated webpage for configuring operaprefs.ini settings, available by going to opera:config. Here you will find all settings from operaprefs.ini that are editable manually. Do note that some settings require a restart of Opera.

The list below will link directly to opera:config settings when available. Links will not work in browsers other than Opera.

Locations

The operaprefs.ini file may also be edited directly. This should never be done while Opera is running. We recommend that the customized version of operaprefs.ini be stored in the Opera directory, which is the first place Opera will look for a settings file. This is particularly important to note if you want to run several versions of Opera with different settings, or you have multiple sets of different settings for the same version.

By default, operaprefs.ini will be placed in the user directory (~/.opera on Linux, /profile or a sub-directory of /user settings on Windows). For information on how to used system fixed settings files, please refer to the System Administrator's Handbook.

Tip: The easiest way to see where operaprefs.ini and other Opera files are located on your computer, is to go to Help > About Opera.

Advice on editing

  • Make a backup of your original operaprefs.ini before editing.
  • Be careful. Do not change a setting if you are not familiar with what it does.
  • If you end up having to delete your settings file, a new one will be generated when you start Opera, but all previous settings will then be gone.

Syntax and values

For integer fields:

  • Value = 1 = TRUE; switched on
  • Value = 0 = FALSE; switched off

Note that some settings are stated in the negative, so that setting to 1 means disabling.

operaprefs.ini Sections

Alphabetical order:

operaprefs.ini Settings

"N/A" in the tables means there is no UI setting available for changing this entry.

[Author Display Mode]
Entry: Description: Default: Configure from UI:
Author CSS Use author CSS (document's CSS) 1 Settings > Preferences > Advanced > Content > Style options
Author Font and Colors Use document's fonts and colors 1
User CSS Enable user CSS 1
User Font and Colors Enable user fonts and colors 0
User Link Settings Enable user link settings 1
[Auto Update]
Entry: Description: Default: Configure from UI:
Add-ons Check Interval This setting holds the interval (in seconds) at which Opera checks for gadget (extensions, Opera Unite applications, widgets) updates. Minimum one day, maximum 30 days, default 3 days. 259200 N/A
Auto Update Responded This is set after the first response from the autoupdate server. This will separate the first installs from the upgrades 1 N/A
Auto Update State State of the automatic update system
  • 0 = No update available
  • 1 = Update on server
  • 2 = Update downloaded
  • 3 = Update installation started
 0 Help > Check for Updates
Autoupdate Server The address of the auto-update server https://autoupdate.opera.com/ N/A
Browser JS Time Time of the last downloaded browser.js file 0 N/A
Country Code Sets which region settings to use for the region of the world you are in. Setting is sent from the Autoupdate server. N/A
Delayed Update Check Interval Delay of update check when a request to the auto-update server fails (in seconds), set by Opera 0 N/A
Dictionary Time Time of the last downloaded dictionaries.xml file 0 N/A
Download All Snapshots Auto-update all snapshots from the Opera Desktop Team blog 0 N/A
Handlers Ignore Time Holds the time of the last downloaded handlers ignore file 0 N/A
Package Qt Linkage Type of Qt linkage to report to the auto update service N/A
Package Type Type of the package to report to the auto update service tar N/A
Plugin Auto Install EnabledEnable the missing plug-in detection and automatic installation wizard1N/A
Plugin Auto Install Max Item CountHow many missing plug-in items will be tracked at maximum10N/A
Plugin Auto Install Retry Count Per ItemNumber of retry attempts for resolving each missing item3N/A
Plugin Auto Install Seconds Between RetryNumber of seconds that the plug-in resolver will wait between each attempt5N/A
Save Auto Update XML Save the XML returned from the auto-update server to disk 0 N/A
Spoof Time Time of the last downloaded spoof file, override_downloaded.ini 0 N/A
Throttle Level Reduction in download speed for an update, to permit normal browsing
  • 0 = no throttling
  • 9 = bandwidth reduced by 90%
 5 N/A
Throttle Period This setting holds the time in seconds of one period of throttling, when throttling is active 120 N/A
Time Of Last Upgrade Check Time Opera last checked for updates 0 N/A
Update Check Interval Time interval for update check (in seconds) 86400 N/A
[BitTorrent]
Entry: Description: Default: Configure from UI:
Bandwidth Restriction Mode Enable automatic bandwidth restriction
  • 1 = auto
  • 2 = manual
 1 BitTorrent preferences
Enable Enable file distribution using BitTorrent 1 N/A
Listen Port Port listening for incoming connections 18768 BitTorrent preferences
Log File Select file path for debugging output. Setting not operable N/A
Max Download Rate Limitation on bandwidth usage for uploading in KB/s -- only effective if Bandwidth Restriction Mode is 2 BitTorrent preferences
Max Upload Rate Limitation on bandwidth usage for uploading in KB/s -- only effective if Bandwidth Restriction Mode is 2 BitTorrent preferences
Warning Dialog Display warning dialog for Torrent downloads N/A
[CSS Generic Font Family]
Entry: Description: Default: Configure from UI:
Cursive Font name of CSS family Cursive Platform dependent Settings > Preferences > Advanced > Fonts
Fantasy Font name of CSS family Fantasy
Monospace Font name of CSS family Monospace
Sans-Serif Font name of CSS family Sans-Serif
Serif Font name of CSS family Serif
[Cache]
Entry: Description: Default: Configure from UI:
Always Check Never-Expiring GET queries Check normal GET URLs if they have "?" in the URL and no expiration date from server 1 N/A
Always Check Redirect Always check redirect on documents 1 N/A
Always Check Redirect Images Always check redirect on images 1 N/A
Always Reload HTTPS In History Always reload HTTPS pages when accessing history 0 N/A
Application Cache Quota Default maximum size for offline application cache in kilobytes 51200 N/A
Cache Docs Cache documents in memory cache 1 N/A
Cache Figs Cache images in memory cache 1 N/A
Cache HTTPS After Sessions Keep HTTPS pages in cache on exit 1 N/A
Check Expiry History Check for expiry when accessing page from history
  • 0 = Respect server expiry setting unless overrun by user setting
  • 1 = Disregard server expiry setting
  • 2 = Never check for expiration
 2 N/A
Check Expiry Load Check for expiry when loading page
  • 0 = Respect server expiry setting unless overrun by user setting
  • 1 = Disregard server expiry setting
  • 2 = Never check for expiration
 0 N/A
Document Size of document cache in kB 2000 Settings > Preferences > Advanced > History
ECMAScript Available memory for JavaScript engine in kB 2000 N/A
Figure Size of image cache in kB 2000 N/A
SVG Cache Size Size of SVG image cache in kB 40960 N/A
[Clear Private Data Dialog]
Entry: Description: Default: Configure from UI:
CheckFlags Remember which fields were checked for last use. Bit field
  • 0 = None selected
  • 1 = Clear all cookies
  • 2 = Clear password-protected pages from cache
  • 4 = Delete temporary cookies
  • 8 = Clear email password (Not in use)
  • 16 = Clear history of visited pages
  • 32 = Clear typed-in addresses
  • 64 = Clear history of visited links
  • 128 = Clear cache
  • 256 = Clear download history
  • 512 = Clear bookmark visited time
 0 Tools > Delete private data
[Colors]
Entry: Description: Default: Configure from UI:
Background Background color of document System dependent Settings > Preferences > Webpages
Color.Form.Button Color for form buttons System dependent N/A
Color.Form.Input Color for input in forms System dependent N/A
Color.Form.Text Color for text in forms System dependent N/A
Color.H1 Color for headings System dependent N/A
Color.H2 Color for headings System dependent N/A
Color.H3 Color for headings System dependent N/A
Color.H4 Color for headings System dependent N/A
Color.H5 Color for headings System dependent N/A
Color.H6 Color for headings System dependent N/A
Color.Normal Color for normal text System dependent N/A
Color.PRE Color used for pre-formatted text System dependent N/A
Edit Background Background in most text fields System dependent N/A
Highlighted Background Background of text that is highlighted (after a search for instance) System dependent N/A
Highlighted Background Unfocused Background of text that is highlighted but has no focus System dependent N/A
Highlighted Text Undocumented System dependent N/A
Highlighted Text Unfocused Undocumented System dependent N/A
Link Color used for webpage links System dependent Settings > Preferences > Webpages
Selected Background Background of text that is selected System dependent N/A
Selected Background Unfocused Background of text that is selected but has no focus System dependent N/A
Selected Text Undocumented System dependent N/A
Selected Text Unfocused Undocumented System dependent N/A
Skin Color to apply to skin System dependent Tools > Appearance > Skin > Color scheme
Tooltip Background Color used for tooltip backgrounds System dependent N/A
Tooltip Text Used for text in tooltips System dependent N/A
Visited link Color used for visited links System dependent Settings > Preferences > Webpages
Workspace Workspace background System dependent N/A
[Columns]
Description
This section specifies the states of Opera's columns and tree views. It is set automatically and should not be edited.
[Developer Tools]
Entry: Description: Default: Configure from UI:
Developer Tools URL The URL of the application to be loaded into the Developer Tools window https://dragonfly.opera.com/app/
Proxy Auto Connect Connect to proxy when Opera starts 0
Proxy Host Address of machine running the proxy process 127.0.0.1
Proxy Port Port number of the proxy process 7001
[Disk Cache]
Entry: Description: Default: Configure from UI:
Buffer Size Size of disk cache buffer (kbytes) 1024 N/A
Cache Docs Cache documents 1 Settings > Preferences > Advanced > History
Cache Figs Cache images 1 N/A
Cache HTTPS Cache secure webpages on disk 0 N/A
Cache Other Cache other content 1 N/A
Docs Modification Check for modication every time, never, or at timed intervals specified in separate settings
  • 0 = Never
  • 1 = Always
  • 2 = Timed intervals
 2 Settings > Preferences > Advanced > History
Documents Expiry Cache expiry time in seconds for documents 300 Settings > Preferences > Advanced > History
Empty On Exit Empty cache when exiting Opera? 0 Settings > Preferences > Advanced > History
Enabled Enable disk cache 1 Settings > Preferences > Advanced > History
Figs Modification Check for modication every time, never, or at timed intervals specified in separate settings
  • 0 = Never
  • 1 = Always
  • 2 = Timed intervals
 2 Settings > Preferences > Advanced > History
Images Expiry Cache expiry time in seconds for images 18000 Settings > Preferences > Advanced > History
Media Cache Size Size of media disk cache in kilobytes 200000 N/A
Multimedia Stream Always Always stream Multimedia content (audio/video tag), wasting bandwidth but saving disk space 0 N/A
Multimedia Stream Size Size, in kilobytes, of the file used when streaming with the Multimedia Cache 1024 N/A
Multimedia Stream in RAM When streaming, do it in RAM 0 N/A
Other Expiry Cache expiry time in seconds for other content 18000 N/A
Other Modification Check for modication every time, never, or at timed intervals specified in separate settings
  • 0 = Never
  • 1 = Always
  • 2 = Timed intervals
 2 N/A
Size Disk cache size in kilobytes 20000 Settings > Preferences > Advanced > History
[Extensions]
Entry: Description: Default: Configure from UI:
Ask Flash Download Prompt about Flash Plug-in download when Flash Plug-in is not available 1 N/A
Delayed Script Execution Primarily for low bandwidth devices, not well-tested on desktop. Ignore script tags until entire document is parsed and rendered, then execute all scripts in order and re-render. 0 N/A
EcmaScriptJIT Enables machine code generation for ECMAScript 1 N/A
Enable Canvas Enable HTML element canvas. Note: Setting not operative. 1 N/A
Frames Enable frames in documents 1 N/A
Frames Show Active Show active frame with border 0 N/A
IFrames Enable inline frames 1 N/A
Plugin Failed Warning Give warning about plug-in performing illegal operation and being removed 1 N/A
Plugin Script Access When disabled, the extra parameter AllowScriptAccess=SameDomain is added to Flash Player, if not already present 1 N/A
PluginResponseTimeout How many seconds Opera should wait for a plug-in to respond 20 N/A
PluginStartTimeout How many seconds Opera should wait for a plug-in to launch 45 N/A
Plugins Enable plug-ins 1 Settings > Preferences > Advanced > Content
Script Debugger Enable the script debugger 0 N/A
Scripting Enable JavaScript/ECMAScript 1 Settings > Preferences > Advanced > Content
Speculative Parser Enable speculative HTML parser 1 N/A
[File Selector]
Entry: Description: Default: Configure from UI:
Dialog Toolkit File dialog toolkit
  • 0 = Autodetect toolkit to use for file selector
  • 1 = Use Qt for file selector (deprecated, will fall back to KDE)
  • 2 = Use GTK for file selector
  • 3 = Use KDE for file selector
  • 4 = Use X11 for file selector
 0 N/A
Show Details Show file and directory details in "Save" and "Open" dialogs 0 Set from file selector dialog menu
Show Hidden Files Display hidden files in "Save" and "Open" dialogs 0 Right-click file selector dialog
[File Types Section Info]
Entry: Description: Default: Configure from UI:
Version This is used by Opera only for version control. Editing is not recommended 1 N/A
[Fonts]
Entry: Description: Default: Configure from UI:
Dialog Used in Opera dialogs System dependent Settings > Preferences > Advanced > Fonts
Email Used in email, news, and newsfeeds
EmailCompose Used when composing mail
Form.Button Used on button text in Web forms
Form.Input Used for input in Web forms
Form.Text Used for text in Web forms
H1 Used in webpage headings
H2 Used in webpage headings
H3 Used in webpage headings
H4 Used in webpage headings
H5 Used in webpage headings
H6 Used in webpage headings
HTMLCompose Used when composing mail in HTML
Menu Used in Opera's menus
Normal Used for normal text in webpages
PRE Used for pre-formatted text in webpages
Panel Used inside Opera's panels
Prefer Fontconfig Settings Prefer font render settings obtained from fontconfig over those obtained from the UI toolkit
Titles Used in feed subjects
Toolbar Used in Opera's toolbars
Tooltip Used in Opera's tooltips
[Geolocation]
Entry: Description: Default: Configure from UI:
Access Token Access token used for location provider N/A
Access token timestamp UNIX timestamp for the setting of the access token 0 N/A
Collect location data in background Keep sending location data to location provider even when the DOM geolocation API is not used. 0 N/A
Enable geolocation Enable or disable geolocation 1 Settings > Preferences > Advanced > Network
Google2011 Location Provider Access Token Access token used for location provider N/A
Location Provider URL URL for the provider of position data based on Wi-Fi access points, cell phone info, etc. https://www.google.com/loc/json N/A
Send location request only on change Only send location request if some of the data providers (Wi-Fi, cell, etc) actually changed. 1 N/A
[Handheld]
Entry: Description: Default: Configure from UI:
External Image Allow external images when emulating handheld device 1 N/A
[HotListWindow]
Entry: Description: Default: Configure from UI:
ActiveTab Denotes last active panel. Numbering depends on order of present panels 0 Panel selector or drop-down button
Bookmarks Manager Splitter Splitter position in bookmark manager 16384 Drag the splitter
Bookmarks Manager Style How the manager should be displayed. Set automatically based on last view
  • 0 = Full tree in one view
  • 1 = Split view
  • 2 = Flat view
 1 Bookmarks > Manage Bookmarks > "View" button
Bookmarks Splitter Position of splitter in bookmarks panel 32768 Drag the splitter
Bookmarks Splitter Position Splitter position (float) in bookmarks window 0.33 Drag the splitter
Bookmarks Style See manager style for available options 0 Bookmarks panel > "View" button
Contacts Manager Splitter Splitter position in contacts manager 16384 Drag the splitter
Contacts Manager Style See bookmarks manager style for available options
  • 0 = Full tree in one view
  • 1 = Split view
  • 2 = Flat view
 1 Tools > Manage contacts > "View" button
Contacts Splitter Position of contacts panel splitter 32768 Drag the splitter
Contacts Splitter Position Splitter position (float) in contacts window 0.33 Drag the splitter
Contacts Style See bookmarks manager style for available options 0 Bookmarks panel > "View" button
Hotlist Single Click Activate panel items with a single click (0=double-click) 1 N/A
Music Splitter Setting not operable 32768 Drag the splitter
Notes Splitter Position of Notes panel splitter 32768
Show Accountinfo Details Show server connection status for each account 0 Click toggle button in mail panel
SortAsc Sort bookmarks in ascending order 1 Bookmarks > Manage Bookmarks > View
SortBy Sort bookmarks by
  • -1 = My order/unsorted
  • 0 = Name
  • 1 = Nickname
  • 2 = Address
  • 3 = Description
  • 4 = Created
  • 5 = Last visited
 0 Bookmarks > Manage Bookmarks > View
Visible Flag for whether panel is visible or not 1 N/A
cxDocked Undocumented 272 N/A
[ISP]
Entry: Description: Default: Configure from UI:
Id Custom user agent substring (needs a restart)
[Install]
Entry: Description: Default: Configure from UI:
Custom Bookmark Merge File File name of the custom bookmark file to import
Custom Bookmark Revision Filename of bookmarks that should be merged into existing bookmarks on startup 0 N/A
First Run Timestamp Unix timestamp of first run 0 N/A
First Used Version Indicates the first version of Opera that has successfully run User dependent N/A
Newest Used Version Indicates the highest version of Opera that has succcessfully run User dependent N/A
One Time Page Page to display on first run only "" N/A
Preference URL URL for downloading list of sites Opera will change user agent string for http://xml.opera.com/spoof/ N/A

Note: The entire [Interface Colors] section applies only to Opera for UNIX on X11 when the UI toolkit is neither GTK nor KDE.

[Interface Colors]
Entry: Description: Default: Configure from UI:
Background Background color of document #FFFFFF N/A
Background Disabled Disabled background color #DBD7D4 N/A
Background Highlighted Highlighted background color #23DC23 N/A
Background Highlighted NoFocus Unfocused highlighted background color #FFFF00 N/A
Background Selected Selected background color #3069C4 N/A
Background Selected NoFocus Unfocused selected background color #C7C7C7 N/A
Button Button color #DBD7D4 N/A
Button Dark Dark button color #9E9690 N/A
Button Light Light button color #FFFFFF N/A
Button Text Button text color #000000 N/A
Button Very Dark Very dark button color #2E2620 N/A
Disabled UI Font Disabled UI font color #9A938E N/A
Link Links #0000CC N/A
Scrollbar Background Scrollbar background color #BAB3AE N/A
Skin the "color" of the system's color scheme #DBD7D4 N/A
Text Text Color #000000 N/A
Text Disabled Disabled text color #9A938E N/A
Text Highlighted Highlighted text color #FFFFFF N/A
Text Highlighted NoFocus Unfocused highlighted text color #000000 N/A
Text Selected Selected text color #FFFFFF N/A
Text Selected NoFocus Unfocused selected text color #000000 N/A
Tooltip Background Tooltip background color #FFFFFF N/A
Tooltip Text Tooltip foreground color #000000 N/A
UI Background UI background color #DBD7D4 N/A
UI Button Hover UI button hover color #000000 N/A
UI Font UI font color #000000 N/A
UI Menu UI menu color #000000 N/A
Visited Link Visited link color #800080 N/A
Workspace Workspace background #A0A0A0 N/A
[Java]
Entry: Description: Default: Configure from UI:
Enabled Enable Java in webpages 1 Settings > Preferences > Advanced > Content
JVM DLL Path Full path to the JVM runtime you want to use (usually a subdirectory of the home directory)
JVM Home Directory Path to the root directory for the custom JVM
JVM Vendor Id An ID for the vendor of the custom JVM, used only for generating JVM information to display
  • 0 = Unknown
  • 1 = Sun
  • 2 = IBM
  • 3 = Sun JDK
 0
JVM Version String Version string, used only for generating JVM information to display
Opera Classpath Path to the opera class file. Default location is platform dependent opera.jar N/A
Revert Initial Applet Focus Revert focus for new applets. UNIX only 1 N/A
Security Policy Path to Java security policy file. Default location is platform dependent opera.policy N/A
[Mail]
Entry: Description: Default: Configure from UI:
Default Mail Search Type Search for mail in:
  • 0 = current view
  • 1 = all messages
 0 N/A
Default Mail Sorting Which column number mail views are sorted by. Positive number means ascending order, Negative descending
  • 0 = Status column
  • 1 = From column
  • 2 = Subject column
  • 3 = From column
  • 4 = Label column
  • 5 = Label column
  • 6 = Size column
  • 7 = Sent date column
 7 Default Mail Settings > Default List Sorting > Sort by
Default Mail Sorting Ascending Whether mail views should be sorted in the ascending order by default 0 Default Mail Settings > Default List Sorting > Sort Ascending
ExtAppParamSpaceSubst Replace undefined parameter with space when launching external application 0 N/A
External Application Full path to external mail application Settings > Preferences > Advanced > Programs
Fit To Width Messages Enables fit to width for all messages in Opera Mail 0 Default Mail Settings > Fit to width
Handler Set which email client to use.
  • 1 = Use Opera
  • 2 = Use external client
  • 3 = Use system default
 1 Settings > Preferences > Advanced > Programs
Mail Database Consistency Check Time UNIX time of the last consistency check of the mail database 0 N/A
Mail Default Flat Threaded View
  • 0 = flat view
  • 1 = threaded view
 1 Default Mail Settings > Default List Sorting > Threaded
Mail Grouping Method A method number, which is used to form groups of mails:
  • -1 = no grouping
  • 0 = group by status
  • 1 = group by field \Flagged
  • 2 = group by date
 2 Default Mail Settings > Default List Sorting > Group by
Mail Message Width List On Top How wide messages should be presented when list is on top, in characters (or 0 for all available width) 105 Default Mail Settings > Mail Layout > Maximize Messages (when list on the top)
Mail Root Directory Root directory for your email storage and settings /profile/mail N/A
Mail Style File Style for runtime generated mail pages /styles/mail.css N/A
Mail View Two Lined Messages
  • 0 = One Line all the time
  • 1 = Two Lines Per Message in the Mail View if the Mail List is on the side
  • 2 = Two lines all the time
 1 N/A
Message Width List On Left How wide messages should be presented when the list is on the left, in characters (or 0 for all available width) 0 Default Mail Settings > Mail Layout > Maximize Messages (when list on the left)
Webmail Address URL to Web mail service http://www.operamail.com N/A
Webmail Service 0 N/A
[MailBox]
Entry: Description: Default: Configure from UI:
AddressFile Full path to contact list file contacts.adr Tools > Contacts, File drop-down button
MusicFile Setting not operable N/A
NotesFile Full path to notes save file notes.adr N/A
[Matches]
This section of operaprefs.ini details the quick find history available in drop-down lists.
[Multimedia]
Entry: Description: Default: Configure from UI:
Allow AutoplayAllow media to autoplay1N/A
Always load favicon
  • 0 = Never
  • 1 = Always
  • 2 = Embedded only
 1 Settings > Preferences > Advanced > Browsing
Interpolate Images Smooth zooming of images 1 N/A
Play Background Sound If page has sound, play it. Note: Disabling makes voice features unavailable. 1 Settings > Preferences > Advanced > Content
Show Animation Allow animation of images 1 Settings > Preferences > Advanced > Content
[Network]
Entry: Description: Default: Configure from UI:
Allow Cross Network Navigation 0 N/A
Allow Pre Authentication Allows faster HTTP authentication when password has been sent for parent directory. 1 N/A
Block IDNA Invalid Domains Block IDNA Invalid Domains 0 N/A
Check Local HostName Look for local hosts before trying autocomplete 1 Settings > Preferences > Advanced > Network > Server name completion
Disable HTTP OPTIONS requests Avoid sending "options" header to proxies 1 N/A
Enable Content Blocker 1 N/A
Enable Cookies DNS CheckEnable support for checking for the cookie monster bug with a DNS/HEAD request0N/A
Enable Cookies V2Enable support for Cookies version 2, RFC 29650N/A
Enable HostName Expansion Enable autocompletion of server names 1 Settings > Preferences > Advanced > Network > Server name completion
Enable HostName Web Lookup Use Web service to search if server name lookup fails 0 N/A
Enable NTLM Enable NTLM and Negotiate authentication methods (Windows only) 1 N/A
HTTP Accept Empty string = use default. The entire HTTP "Accept" header must be typed in for alternative setting "" N/A
HTTP Accept Charset Data for HTTP header "Accept-Charset" N/A
HTTP Accept Language Comma-separated list of preferred languages for webpages, the data for HTTP header "Accept-Language" Settings > Preferences > General
HTTP Idle Timeout Timeout for idle HTTP connection in seconds. 0 = no timeout 0 N/A
HTTP Loading Delayed Timeout Timeout for HTTP Loading Delayed messages in seconds. 0 = no timeout 0 N/A
Hold On Filling PipelinesHold On Filling Pipelines0N/A
HostName Expansion Postfix Attempt server name completion using this suffix .com Settings > Preferences > Advanced > Network > Server name completion
HostName Expansion Prefix Attempt server name completion using this prefix www. Settings > Preferences > Advanced > Network > Server name completion
HostName Web Lookup Address URL to Web search to use if server name lookup fails ""
IDNA White List Top-level domain white list for International Domain Names (IDN). Switch to black list by prefacing list with ~ :com:net:no:jp:de:se:kr:tw:cn:at:dk:ch:li:museum:hu:xn--kgbechtv:xn--hgbk6aj7f53bba:xn--0zwm56d:xn--g6w251d:xn--80akhbyknj4f:xn--11b5bs3a9aj6g:xn--jxalpdlp:xn--9t4b11yi5a:xn--deba0ad:xn--zckzah:xn--hlcj6aya9esc7a: N/A
Permitted Ports Comma-separated list of additional permitted ports "" N/A
Plugin Ignore File Path to a list of plug-ins Opera should ignore
  • /usr/share/opera/ini/plugin-ignore.ini (Linux)
  • [install directory]\plugin-ignore.ini (Windows)
 N/A
Track Password Cookie Usage Use cookies to trace and remove password-protected pages from cache and history 0 N/A
URL Filter File Filter list of URLs [user settings folder]\urlfilter.ini N/A
UTF8 Escape URLs 1 Settings > Preferences > Advanced > Network
Use Absolute FTP Path Use absolute paths when logging on to FTP servers 0 Settings > Preferences > Advanced > Network
[News]
Entry: Description: Default: Configure from UI:
External Application Path to external Usenet news application. UNIX only "" Settings > Preferences > Advanced > Programs
[OEM]
Entry: Description: Default: Configure from UI:
Never Flush Cache Expiration Time Days Number of days to keep a "never flush" item 30 N/A
Never Flush Trusted Servers Use Operator Cache (permanent caching) for listed servers help.opera.com;sitecheck.opera.com
Operator Cache Size Size of Operator Cache in kB 20000
Out Of Coverage File Name Setting not relevant for desktop
[Opera Account]
Entry: Description: Default: Configure from UI:
Computer ID Unique ID that identifies your computer 0 N/A
OAuth Consumer Key Non secret oauth consumer key for Opera Account login. N/A
OAuth Consumer Secret Non secret oauth consumer secret for Opera Account login. N/A
OAuth access token URI URI for downloading the Oauth token. https://auth.opera.com/service/oauth/simple/access_token N/A
Opera Account Used Is there an Opera account username registered? 0 Opera account wizard in Opera Link or Opera Unite
Save Password Save Opera account password? 1 Opera account wizard in Opera Link or Opera Unite
Server Address Address accepting login information for Opera account https://auth.opera.com/xml N/A
Username Username of Opera account 0 Opera account wizard in Opera Link or Opera Unite
[Opera Sync]
Entry: Description: Default: Configure from UI:
Last Cached Access Time of last signup 0 N/A
Last Cached Access Num Number of signups on day of Last Cached Access 0 N/A
Sync Bookmarks If set, bookmarks will be synchronized 1 Synchronize Opera > Configure
Sync Client State Opera Link sync state, generated by the server 0 N/A
Sync Client State Bookmarks Opera Link sync state, generated by the server 0 N/A
Sync Client State Notes Opera Link sync state, generated by the server 0 N/A
Sync Client State Password ManagerOpera Link (sync) sync state, generated by the server, and saved for password manager0N/A
Sync Client State Searches Opera Link sync state, generated by the server 0 N/A
Sync Client State Speed Dial Opera Link sync state, generated by the server 0 N/A
Sync Client State Speed Dial 2Opera Link sync state, generated by the server, and saved for Speed Dial 20N/A
Sync Client State Typed History Opera Link sync state, generated by the server 0 N/A
Sync Client State URL Filter Opera Link sync state, generated by the server 0 N/A
Sync Data Provider Server providing Opera Link data myopera N/A
Sync Enabled If set, Opera Link is enabled 0 Synchronize Opera
Sync Last Used Timestamp when Opera Link was last used 0 N/A
Sync Notes If set, notes will be synchronized 1 Synchronize Opera > Configure
Sync Password ManagerIf set, passwords will be synchronized0N/A
Sync Personalbar If set, bookmarks on the personal bar will be synchronized 1 Synchronize Opera > Configure
Sync Searches If set, search engines will be synchronized 1 Synchronize Opera > Configure
Sync Speed Dial If set, Speed Dial will be synchronized 1 Synchronize Opera > Configure
Sync Typed History If set, typed history will be synchronized 1 Synchronize Opera > Configure
Sync URL Filter If set, content blocker rules will be synchronized 1 Synchronize Opera > Configure
Sync Used If set, user has used Opera Link 0 N/A
[Performance]
Entry: Description: Default: Configure from UI:
Asynchronous DNS Lookup TimeOut Seconds How many seconds Opera should wait for an asynchronous DNS lookup. 45 N/A
Enable Pipelining Enable HTTP Pipelining 1 N/A
HTTP Error Strategy Strategy for server error messages
  • 0 = Always show server error
  • 1 = Never show server error
  • 2 = Show custom error messages
 2 N/A
Lag Threshold For Animation Throttling The average lag (in ms) of messages in dispatcher's queue that should be considered as throttling trigger. This value is a threshold used to determine whether the throttling of animated content is needed or not. 50 N/A
Max Connections Server How many connections to allow to the same server 8 Settings > Preferences > Advanced > Network
Max Connections Total How many connections to allow in total 20 Settings > Preferences > Advanced > Network
Max Persistent Connections ServerMaximum simultaneous persistent connections per server6N/A
Network Buffer Size Size of network buffer in kilobytes 64 Settings > Preferences > Advanced > Network
No Connection Keepalive Disallow persistent connections to servers for HTTP, FTP and news. Allow = 0 0 N/A
Non-Compliant Server 100 Continue Use 100-continue override for non-compliant host 0 N/A
Reduce Max Persistent HTTP Connections If pipeline connection to server, reduce maximum total connections to server 1 N/A
Reflow Delay LoadDetermines how often, in milliseconds, we aim to reflow the document while loading. Lower value means more "incremental" rendering, but slows loading down since we'll spend more time in total reflowing. If the value is zero, there will be no delay, which is not recommended for anyone. The appropriate value for this tweak depends largely on platform performance, and so is difficult to estimate accurately based on profile only. Testing and tuning "on device" while performing "average browsing" is typically very useful.200N/A
Reflow Delay ScriptDetermines how often, in milliseconds, we aim to reflow the document while executing a script (usually the reflow would then be caused by the script.) Lower value means more "incremental" rendering, but slows down script execution since we'll spend more time in total reflowing. If the value is zero, there will be no delay.500N/A
Switch Animation Throttling Interval The minimal interval (in ms) that should be kept between enabling/disabling the throttling of animated content. This value is used used to not switch the throttling too often. 2000 N/A
Synchronous DNS Lookup Use synchronous DNS lookup 0 N/A
Wait For StylesDetermines how long we will hold the layout waiting for styles. This is to avoid drawing something unstyled (ugly)that will be replaced by something styled very soon. Setting this to 0 means that we won't wait for styles and instead show anything as fast as possible.5000N/A
[Persistent Storage]
Entry: Description: Default: Configure from UI:
Databases Access Handling Tells if databases are enabled for a specific origin.
  • 0 = no
  • 1 = allow
 1 N/A
Domain Quota Exceeded Handling For Databases Open a dialog when the quota for database storage is exceeded 1 N/A
Domain Quota Exceeded Handling For Widget Preferences Open a dialog when the quota for widget.preferences is exceeded 0 N/A
Domain Quota Exceeded Handling For localStorage Open a dialog when the quota for local storage is exceeded 1 N/A
Domain Quota For Databases Quota for database storage data in kilobytes 5120 N/A
Domain Quota For Widget Preferences Quota for widget.preferences data per origin in kilobytes 5120 N/A
Domain Quota For localStorage Quota for local storage data in kilobytes 5120 N/A
Global Quota For Databases Global quota for all database storage data in kilobytes 102400 N/A
Global Quota For Widget Preferences Global quota for all widget.preferences data in kilobytes 102400 N/A
Global Quota For localStorage Global quota for all local storage data in kilobytes 102400 N/A
SQL Query Execution Timeout Execution timeout for database queries in milliseconds 20000 N/A
User JS Storage Quota Quota in kilobytes available for user script storage. Set to 0 to prevent any use. 0 N/A
[Personal Info]
Entry: Description: Configure from UI:
Address Settings > Preferences > Forms > Password Manager
City
Country
EMail
First Name
Home Page Complete URL
Special 1 Field for miscellaneous information
Special 2 Field for miscellaneous information
Special 3 Field for miscellaneous information
State
Surname
Telefax Field alternatively used for mobile phone
Telephone
Zip Zip/postal code
[Printer]
Entry: Description: Default: Configure from UI:
Bottom Margin Margin in millimeters Platform dependent File > Print Options
ColorMode Use color mode for printout. UNIX only 1 File > Print > Options
Default Frames Print Type How to print frames 2 N/A
FileName Set default file name for printing to file. UNIX only "" File > Print > Destination
Fit To Width Print Fit to paper width 1 File > Print options
Left Margin Margin in millimeters Platform dependent File > Print Options
NumCopies Number of copies to print. UNIX only 1 File > Print > Destination
Orientation UNIX only. Portrait = 0, landscape = 1 0 File > Print > Options
PageOrder UNIX only. First page first = 0, last page first = 1 0 File > Print > Destination
PageSize UNIX only. Page size for printing. A4 = 0 0 File > Print > Options
Print Background Print background image? 1
Print Left Footer String Lower left print footer string &u N/A
Print Left Header String Upper left print header string &w N/A
Print Right Footer String Lower right print footer string &d &t N/A
Print Right Header String Upper right print header string &p N/A
Print To File DPI DPI of the virtual printer 100 N/A
Print To File Height Height of the virtual paper in 1/100 of an inch (A4) 1169 File > Print > Options
Print To File Width Width of the virtual paper in 1/100 of an inch (A4) 827 File > Print > Options
PrintToFile Print to file or not. UNIX only 0 File > Print > Destination
PrinterCustomName UNIX only. Full path to printer program to use "" File > Print > Printer program
PrinterCustomParameter UNIX only. Parameters for printer program "" File > Print > Printer program
PrinterName UNIX only. Selected printer, default is system dependent File > Print > Destination
Right Margin Margin in millimeters Platform dependent File > Print Options
Scale Default print zoom in percentages 80 File > Print Options
Show Printer Header Add header and footer to printed document 1
Top Margin Margin in millimeters Platform dependent File > Print Options
UseCustomName Use custom printer program 0 Select custom program from printer list
[Proxy]
Entry: Description: Default: Configure from UI:
Automatic Proxy Configuration URL URL of automatic proxy configuration file Settings > Preferences > Advanced > Network > Proxy servers
Convert No Proxy Servers If true Opera converts the NoProxyServers list to site prefs 0
Enable HTTP 1.1 for proxy Permit HTTP 1.1 when connecting to proxy 0
Enable Proxy Enable proxy or not 1
Enable start with HTTP 1.1 for proxy Permit HTTP 1.1 on first request when connecting to proxy 0
FTP server Address of server
Gopher server Address of server
HTTP server Address of server
HTTPS server Address of server
No Proxy Servers Comma-separated list of host names that should not go through proxy
No Proxy Servers Check Avoid using proxy for certain host names?
Opera Turbo Config File Configuration file for Opera Turbo turbosettings.xml N/A
Opera Turbo bypass URLs A space-separated list of URLs that should be accessed directly instead of through the Opera Turbo service N/A
SOCKS passwordpassword for SOCKS basic authenticationN/A
SOCKS serverProxy host:port for SOCKSN/A
SOCKS usernameusername for SOCKS basic authenticationN/A
Use Automatic Proxy Configuration Use file specified as Automatic Proxy Configuration URL 0 Settings > Preferences > Advanced > Network > Proxy servers
Use FTP Use proxy for FTP
Use GOPHER Use proxy for Gopher
Use HTTP Use proxy for HTTP
Use HTTPS Use proxy for HTTPS (secure sites)
Use Opera Turbo Enable Opera Turbo 0 Settings > Preferences > Webpages
Use Proxy On Local Names Check Access local machines through proxy? 0 N/A
Use SOCKSEnable SOCKS proxy0N/A
Use WAIS Use proxy for WAIS Settings > Preferences > Advanced > Programs
Use Web Turbo Mode Turns Opera Turbo on or off 0 Status bar
WAIS server Address of server Settings > Preferences > Advanced > Programs
Web Turbo Config File File listing an alternate server for Opera Turbo turbosettings.xml N/A
[SVG]
Entry: Description: Default: Configure from UI:
Rendering Quality Smoothness of curves in SVG display. Lower value = higher quality 25 N/A
Target Framerate The target frame rate for SVG animations 29 N/A
[Saved Settings]
Entry: Description:
Open Dir Full path to last used directory for opening file
Save Dir Full path to last used directory for saving file
[Security Prefs]
Entry: Description: Default: Configure from UI:
Certificate revocation lists for ssl Enable online revocation of certificates for ssl connections 1 N/A
Crypto Method Overrides Remotely-updateable bit flags used to warn about or disable insecure cryptographic methods 0 N/A
Enable SSL v3 Enable Secure Socket Layer version 3 1 Settings > Preferences > Advanced > Security
Enable TLS v1.0 Enable Transport Layer Security version 1 1 Settings > Preferences > Advanced > Security
Enable TLS v1.1 Enable Transport Layer Security version 1.1 1 Settings > Preferences > Advanced > Security
Enable TLS v1.2 Enable Transport Layer Security version 1.2 1 Settings > Preferences > Advanced > Security
Encrypt client certificatesEnable encryption of client certificates0N/A
Minimum Security Level Minimum SSL security level allowed 0 N/A
OCSP Validate Certificates Enable online SSL certificate validation 1 N/A
Password Lifetime Expiry time in minutes for master password in memory 5 N/A
Strict EV Mode Enable strict Extended Validation, that only displays the EV indicator if all content is EV 0 N/A
Use Paranoid Mailpassword Use master password for email/password manager 0 Settings > Preferences > Advanced > Security
[Sounds]
Entry: Description: Default: Configure from UI:
Clicked Full path to sound file played when user clicks the mouse Settings > Preferences > Advanced > Notifications
Enabled Enable action sounds in Opera 1
End Full path to sound file played when Opera exits
Failure Full path to sound file played when an operation fails
Loaded Full path to sound file played when page loading is completed
Start Full path to sound file played when Opera starts
Transfer Done Full path to sound file played when file transfer is completed
[Special]
Entry: Description: Default: Configure from UI:
Go Home Time Out Time before returning automatically to home page in seconds. Kiosk mode setting 30 N/A
JavaScript AppCodeName Which name should be retrieved by the DOM/JS property that retrieves code name of browser "Mozilla"
JavaScript AppName Which name should be retrieved by the DOM/JS property that retrieves code name of browser "Netscape"
JavaScript IE AppName Which name should be retrieved by the DOM/JS property that retrieves code name of browser "Microsoft Internet Explorer"
JavaScript Opera AppName Which name should be retrieved by the DOM/JS property that retrieves code name of browser "Opera"
[State]
Entry: Description:
Accept License License has been displayed and accepted. UNIX only
Reading Plugins Set to 1 when scanning plug-in. Should be 0 between sessions, 1 indicates crash
Run Flag which is set to 1 when Opera starts, and to 0 when it exits. If se tting is 1 at start-up, Opera will behave as recovering from crash. Editing this setting is not recommended
[System]
Entry: Description: Default: Configure from UI:
DisableTextSelect Disable all selection of text 0 N/A
Opera Labs Name When Opera product is set to 2, the full name of the Labs build. Windows only. N/A
Opera Product Whether to run as Opera (0), Opera next (1) or Opera Labs (2). Windows only. 0 N/A
Use ScreenReader Menus Enables screen-reader compatible menus when an MSAA query is detected (Windows only) 0 N/A
Force CD Only allow CD operation. Windows only 0 N/A
Multi User Operadef6.ini and Windows only. Default is system dependent N/A
[TransferWindow]
Entry: Description: Default: Configure from UI:
Activate On New Transfer Show transfers when starting download 1 Tools > Transfers > View button
Keep Entries Days Days to keep entries in transfer manager 7 N/A
ShowDetails Show transfer details in window 1 Tools > Transfers > View button
[Trusted Protocols Section Info]
Entry: Description: Default: Configure from UI:
Version Version number for handlers list 0 N/A
[Trusted Protocols]
Syntax: Description: Configure from UI:
protocol=use,terminal, full path to application List of trusted protocols and how to handle them. Values:
  • 0 = Use other application
  • 1 = Use default application
  • 2 = Run in terminal
 Settings > Preferences > Advanced > Programs
[User Agent]
Entry: Description: Default: Configure from UI:
Allow Components In UA String Comment Allow adding extra components to UA string 0 N/A
Spoof UserAgent ID Browser to identify as
  • Global values:
  • 1 = Opera
  • 2 = Mozilla
  • 3 = Internet Explorer
  • Site-specific values:
  • 4 = Mozilla, Opera not mentioned
  • 5 = Internet Explorer, Opera not mentioned
 1 N/A (site-specific settings only)
[User Display Mode]
Entry: Description: Default: Configure from UI:
Author CSS Enable author CSS 0 Settings > Preferences > Advanced > Content > Style options
Author Font and Colors Enable author fonts and colors 0
User CSS Enable user CSS 1
User Font and Colors Enable user font and colors 1
User Link Settings Enable user link settings 1
[User Prefs]
Entry: Description: Default (if available): Configure from UI:
Default Line Height Cyrillic Line height to use for pages encoded with a Cyrillic encoding, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. -1 N/A
Default Line Height General Line height to use for pages not covered by the following preferences, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. -1 N/A
Default Line Height Japanese Line height to use for pages encoded with a Japanese encoding, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. 1200 N/A
Default Line Height Korean Line height to use for pages encoded with a Korean encoding, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. -1 N/A
Default Line Height Simplified Chinese Line height to use for pages encoded with a simplified Chinese encoding, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. 1200 N/A
Default Line Height Traditional Chinese Line height to use for pages encoded with a traditional Chinese encoding, when line height is not explicitly specified. Values >= 0 represent the line height in relation to the font height in permille, e.g 1200 for 1.2. Use -1 for default line height. 1200 N/A
About Style File About page CSS file /styles/about.css N/A
Accept Cookies Session Only Throw away cookies on exit 0 Settings > Preferences > Advanced > Cookies
Activate Tab On Close When closing a tab
  • 0 = activate the last active tab
  • 1 = activate the next tab
  • 2 = activate first tab opened from current tab
 0 Settings > Preferences > Advanced > Tabs
Address Search Drop Down Weighted Width New default weighted width of the search field drop-down, measured as a percentage of the address bar 2500 Drag the separator between the address field and the search field
Address Search Drop Down Width Width of the address search drop-down field 180 N/A
AddressBar Alignment Position of address bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 2 Toolbars > Customize
Addressbar Content Search Enable automatic searching of content from the address field 1 Settings > Preferences > Advanced > History
Addressbar Inline Auto Completion Automatic completion of previously typed addresses in the address field 1 N/A
Allow Autofocus Form Element Allow autofocus of form upon loading webpage, both via javascript focus() and html attribute autofocus. 1 N/A
Allow Context Menus Enable right-click menus (Ctrl-click on Mac). 1 N/A
Allow Empty Workspace Permits the last tab to be closed 0 N/A
Allow File XMLHttpRequest Allow XMLHttpRequest between files which is something that is normally blocked for security reasons. Turning this on will allow web developers to test web applications stored on disk. 0 N/A
Allow Scripts To Navigate In History Enables or disables scripts to navigate in DOM history 1 N/A
Allow script to change status Allow JavaScript to alter the contents of Opera's status field 1 Settings > Preferences > Advanced > Content > JavaScript options
Allow script to hide address Allow JavaScript to open tabs without full address field 1
Allow script to lower window Allow JavaScript to minimize pages 1
Allow script to move window Allow JavaScript to change the position of pages 1
Allow script to raise window Allow JavaScript to activate minized pages or windows 1
Allow script to receive right clicks Allow JavaScript to override right mouse button action 0
Allow script to resize window Allow JavaScript to change size of pages and windows 1
Alternative Page Cycle Mode Page cycle mode to use when cycling without displaying list of pages
  • 0 = Recently used order
  • 1 = Page bar order
  • UNIX: 1
  • Windows, Mac: 0
 N/A
Always Load User JavaScript Makes User JavaScript load on all pages, including documents not containing scripts. Automatically set to 1 when a User JavaScript folder is added/User JS is enabled. As long as User JS is enabled, changing this setting is strongly discouraged. 0 N/A
Always Reload Interrupted Images Restart download of interrupted images when activating a document 0 N/A
Append Extension To Filename Automatically add extension to saved file. UNIX only 1 N/A
Ask About Missing Dictionary Not in use 1 N/A
Application Icon Full path to alternative icon file. Windows only N/A
Ask Closing DialUp Connections Turn on prompt for closing dial-up connections. Windows only 0 N/A
Ask For Cookie Confirmation Prompt user before setting cookies 0 Settings > Preferences > Advanced > Cookies
Auto Dropdown Allow autocompletion dropdown 1 N/A
Auto Mail Panel ToggleWhether the mail panel should toggle automatically or not when opening a mail window1N/A
AutocompleteOff Disables Wand Allow autocomplete attribute in forms to disable password manager 0 N/A
Automatic RAM Cache Decide space used by memory cache automatically
  • Windows, Mac: 1
  • UNIX: 0
 Settings > Preferences > Advanced > History
Automatic Select Menu Enable double-click context menu for text 1 Settings > Preferences > Toolbars and menus
Automatic Window Storage File Path to file where Opera continuously stores session /profile/autopera.win N/A
Automatically reparse XHTML with parsing errors as HTML If parsing errors occured during parsing XHTML, automatically reparse document as HTML 1 N/A
Avoid Flicker Enable double-buffering 1 N/A
Browser CSS File Path to browser style sheet N/A
Browser JavaScript Whether to download and use the browser.js file. Enable by setting to 1, Opera will then download the file and set to 2.
  • 0 = Never download or use
  • 2 = Use and check for updates weekly
  • 1 = browser.js signature invalid. On next check for update, a new browser.js will be downloaded and the value set to 2.
 2 N/A
Button Directory Path to skins N/A
Button Set Current skin file
  • Windows, UNIX: standard_skin.zip
  • Mac: native_skin.zip
 View > Skin
Cache Directory4 Full path to cache directory. Empty string = use default cache4.dat "" N/A
Cache Style File CSS file for page displaying cache contents /styles/cache.css N/A
Center Mousebutton Action Configure center mouse button clicks
  • 0 = Open link
  • 1 = Open in new page
  • 2 = Open in background
  • 3 = Open in new window
  • 4 = Open in background window
  • 5 = Do not open link
 2 Shift + Middle-click
Certificate Info CSS File Path to CSS file for certificate information /styles/certinfo.css N/A
Chat Room Splitter Position of splitter in chat window 100 N/A
Check For New Opera Keeps track of weekly check for new updates. Set to 0 to disable 1 N/A
Chrome Integration Drag Area The height of the draggable area when the tabs are integrated in the window chrome 20 N/A
Chrome Integration Drag Area Maximized The height of the draggable area when the tabs are integrated in the window chrome and the window is maximized 1 N/A
Click To Minimize Click a tab to minimize it 0 N/A
Client Pull Enable HTTP redirection 1 Settings > Preferences > Advanced > Network
Client Refresh Enable automatic redirection 1 Settings > Preferences > Advanced > Network
Color List Row Mode Alternate background colours in lists 0 N/A
Color Scheme Mode 0 disable, 1 system, 2 color scheme 0 Tools > Appearance > Skin
CompatMode Override Allow quirksmode. 0 Auto, 1 Constant, 2 Never 0 N/A
Config Style File Style for runtime generated config page /styles/config.css N/A
Confirm Open Bookmark Limit Prompt if more than this many bookmarks opened at once. Set to 0 to disable 5 N/A
Console Error Log Path to log output file from error console N/A
Console Error Log Enabled Enable logging of console errors to file 0 N/A
Console Error Log Filter Filter to use in console error log javascript N/A
Content Block CSS File CSS file used in content block edit mode /styles/contentblock.css N/A
Country Code Country code in ISO 3166-1 alpha-2 format. Overrides country code detected by Opera N/A
Crash Feedback Page Web address for server feedback, after the user has sent a crash log. Opens after restart. N/A
Custom Colors Custom colors for color selector dialog N/A
Debug Skin When set, will show information about the skin element in the tooltip hover 0 N/A
Debug Style File Style for runtime-generated opera:debug page /styles/debug.css N/A
Default Mail Store Type
  • 0 = none: do not store messages locally, fetch from server when clicking
  • 1 = monthly: create one big mbox file for each month of messages (Opera 7/8-style)
  • 2 = per message: create one mbox file per message
  • 3 = database cursor: store all messages in one big, compressed binary file
 2
DevTools Open Attached Last used state of developer tools window (attached or detached). 1 N/A
DevTools Splitter Position Position of developer tool in main window, measured in pixels 500 N/A
Dialog Configuration File defining dialog layout dialog.ini N/A
Dim Search Opacity Opacity for the dim effect used when using page search, measured in percent. 52 N/A
Dir Style File Path to CSS file for viewing directory listings (local and FTP) /styles/dir.css
Direct History File File containing history of typed-in URLs. Use full path N/A
Directory Image Path to default directory image file for directory/file listings \images\folder.gif N/A
Disable Bookmark Import Disable import of bookmarks on first run. Can be set on packaging/installation to prevent bookmark import from current default browser. N/A
Disable Client Refresh To Same LocationDisable refresh by META tag to the same location0N/A
Disable Opera Package AutoUpdate Disable auto-update, and remove all traces of it from the UI 0 N/A
Disabled Cookie State Cookie settings when last enabled N/A
Disabled Plugins List of the plug-in paths that user manually disabled N/A
Disallowed Web Handlers Determines protocols/mime types web handlers are not allowed to be registered for N/A
Display Link Title Display title of link in tooltip 1 N/A
Do Not Show Cookie Domain Errors Avoid displaying error dialogs for cookie domains 1 N/A
Do Not Show Cookie Path Errors Avoid displaying error dialogs for cookie paths 1 Settings > Preferences > Advanced > Cookies
Do Not Show Language Version Conflict Warning Avoid warning about language file/browser version conflict. Note: The Opera 8 language file format is not compatible with Opera 9. 0 N/A
Do Not Show No Domain IP Addess Errors Handling missing IP address when trying to set cookie
  • 0 = Refuse with error message
  • 1 = Refuse silently
  • 2 = Accept for server only
 2 N/A
Document Mode CSS usage settings 1
Doubleclick to Close Tab Enables double click for closing of tabs 0 N/A
Download Directory Path to default download directory. Platform dependent Settings > Preferences > Advanced > Downloads
Download Manager The path of external download manager to use, empty value or "opera" indicates none. N/A
Downloaded Overrides File File storing downloaded host overrides override_downloaded.ini
Draw Anti Aliased Fonts Enable anti-aliasing. UNIX only 1 N/A
Drives Style File Path to CSS file for display of drive listings /styles/drive.css N/A
Ellipsis In Center Shorten button and tab names in the middle 0 N/A
Enable Cookies Available options
  • 0 = Refuse all
  • 1 = Refuse third party
  • 2 = Only third party set to same server
  • 3 = Accept all cookies
  • 4 = Only first party cookies as specified in server manager
  • 5 = Treat all cookies as specified in manager, but refuse third party not set to same server
  • 6 = Treat all cookies as specified in manager
  • 7 = Prompt for each third party cookie
  • 8 = Accept first party as specified in manager, prompt for third party
 3 Settings > Preferences > Advanced > Cookies
Enable Core X Fonts Enable all Core X fonts. UNIX only 1 N/A
Enable DDE Enable Dynamic Data Exchange in Opera. Windows only 1 N/A
Enable Drag Bit field; which elements to enable drag and drop for:
  • 1 = link
  • 2 = bookmark
  • 8 = same window
 247 N/A
Enable Edit Triple Click Handling double clicks in text edit fields. UNIX only
  • 0 = Double-click text to select all
  • 1 = Double-click to select word, triple-click to select all
 0 N/A
Enable Extended Keyboard Shortcuts Enables shortcuts labeled "Feature ExtendedShortcuts" in keyboard.ini file (mostly single-key shortcuts) 0 Settings > Preferences > Advanced > Shortcuts > "Enable single-key shortcuts"
Enable Gesture Enable mouse gestures 1 Settings > Preferences > Advanced > Shortcuts
Enable Mouse Flips Enable forward and backward navigation via mouse flips 1 N/A
Enable On Demand Plugin Enable plug-ins on a case-by-case basis, and only when explicitly requested by the user 0 Settings > Preferences > Advanced > Content > "Enable plug-ins only on demand"
Enable On Demand Plugin Placeholder Enable displaying an image as placeholder for on demand plug-ins 1 N/A
Enable Referrer Enable referrer logging; allow Web sites to know which site you came from 1 Settings > Preferences > Advanced > Network
Enable Scroll Marker scroll marker appears:
  • 0 = never
  • 1 = when hitting page top and bottom
  • 2 = when scrolling more than 10%
 0 Settings > Preferences > Advanced > Browsing
Enable Scrollbar Colors Allow CSS styling of scroll bars 1 Settings > Preferences > Advanced > Content
Enable Service Discovery Notifications Show/hide discovered locally hosted applications in the UI 1 Opera Unite > Discover Local Opera Unite Users
Enable Spatial NavigationSet to false to disable spatial navigation1N/A
Enable Start Tool Bar Enable drop-down start bar on address field 1 View > Toolbars > Customize
Enable Styling On Forms Allow document to style form elements 1 Settings > Preferences > Advanced > Content
Enable Trust Rating Enable anti-phishing by trust rating each visited website 1 N/A
Enable UI Animations Enable animations in the UI 1 N/A
Enable Unite Enable Opera Unite services 1 Opera Unite > Enable Opera Unite
Enable Usage Statistics Enable usage statistics 0 N/A
Enable Wand Enable password manager 1 Settings > Preferences > Advanced > Security
Enable WebSockets Enables or disables scripts to use WebSockets 0 N/A
Enable Webfonts Enable downloadable fonts 1 N/A
Enable Xft Fonts Enable Xft fonts. UNIX only 1 N/A
Enable config URL Enable opera:config 1 N/A
Entities In Forms Enable numerical character reference for characters in forms data not in form character encoding 1 N/A
Error Console Filter Current display filter for the error console mail=3 Tools > Advanced > Error console
Error Style File Style file for the error console error.css N/A
Exceptions Have Stacktrace Stacktrace information is included in each exception object thrown 0 N/A
Extended Center Mousebutton Action Paste and go. UNIX only. 0 = start panning 1 Shift + middle-click
Extension Set ParentName of toolbar, that is supposed to show ExtensionSet widgetDocument ToolbarN/A
Fallback HTML Encoding Encoding to use when none is specified in document. Default depends on platform and language version Settings > Preferences > General
File Image Path to image used for file listings /styles/file.gif N/A
Fast Forward Configuration File defining fast forward keywords fastforward.ini N/A
First Update Delay Page redraw delay in milliseconds 200 Settings > Preferences > Advanced > Browsing
FlexRoot Max Width Maximum width of flex-root (0 means disable flex-root) 0 N/A
FlexRoot Min Width Minimum width of flex-root (Ignored if FlexRootMaxWidth is 0. FlexRootMinWidth=0 means use viewport width) 0 N/A
Force DPI Set absolute DPI value for fonts 0 N/A
Force Encoding Override document encoding
  • Do not override = ""
  • [Exact name of encoding]
  • Japanese = "Autodetect-JP"
  • Chinese = "Autodetect-ZH"
  • Korean = "Autodetect-KO"
  • Cyrillic = "Autodetect-RU"
 "" View > Encoding
Format Unstyled XML Enables pretty printing of unstyled XML 1 N/A
GPU Style File Style for runtime generated GPU page "/styles/gpu.css" N/A
Geolocation site state Determines whether websites are allowed to retrieve the current geolocation -1 N/A
Gesture Threshold Threshold for mouse gestures 5 N/A
Global History File Opera history is stored in this file. Full path N/A
Google TLD Default Default top level domain to use for Google User dependent N/A
Google TLD Downloaded Set on a successful download of the Google top level domain, and reset on every attempt to download the TLD 1 N/A
Google TLD URL URL to Google's top level domain lookup server https://www.google.com/searchdomaincheck?format=domain N/A
Handlers Data File File containing data of the protocol handlers/viewers "/profile/handlers.ini" N/A
Handlers Ignore File File containing a white list of the protocols a handler can be registered for "handlers-ignore.ini" N/A
Has Restored Extensions 2 = repaired MIME types. Do not tinker. UNIX only 0 N/A
Has Restored MIME Flag 1 = changed default setting for trusting MIME types. Avoid tinkering. UNIX only 0 N/A
Has Shown Center Click Info Dialog for configuring middle-click action shown already? 0 N/A
Has Shown KDE Shortcut Message Warning that KDE is detected and uses certain shortcuts. UNIX only 0 N/A
Has Shown Plugin Error Plug-in problem dialog shown already? UNIX only 0 N/A
Help URL Full path to Opera Help. Changing this setting is not recommended Set by installer N/A
Hide Mouse Cursor Typically for kiosk setups with no mouse 0 N/A
Hide URL Parameter Hide URL parameters in the address field 1 N/A
History Navigation Mode
  • 1 = Automatic mode
  • 2 = Compatible mode
  • 3 = Fast mode
Read more about history navigation.		 1 N/A
History Style File CSS for opera:history. /styles/history.css N/A
History View Style View mode for history panel 0 N/A
Home URL URL to user-defined home page, specify full path to local file or a Web URL. Set by installer Settings > Preferences > General
Hot List File Ver2 Full path to Opera bookmarks file. Empty string = use default.adr "" Bookmarks > Manage bookmarks > Open
Hotlist Alignment Position of hot list window
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 1 N/A
IM Style File CSS for chat client /styles/im.css N/A
Ignore Target Disallow documents to create new windows/pages 0 Settings > Preferences > Advanced > Browsing
Ignore Unrequested Popups Disallow documents to create new windows/pages without user interaction 1 Settings > Preferences > General
Image Style File Style for runtime generated image page /styles/image.css N/A
Info CSS File CSS file for Info panel /styles/info.css N/A
IntranetHosts List of hostnames that should be treated like URLs instead of go to default search engine. Previously typed intranets are stored here. N/A
JavaScript Error Log (Full path to) file for storing JavaScript error log. Empty string means no log saved. "" N/A
JavaScript Errors Show error console when JavaScript errors occur 0 Settings > Preferences > Advanced > Content > JavaScript options
Keyboard Configuration Empty string = use default for platform. Filename "input.ini" Settings > Preferences > Advanced > Shortcuts
Language Codes File File with overview of language codes and language names. Set by installer lngcode.txt N/A
Language File Current language file used. Set by installer or changed in preferences. Download language files for UNIX. Settings > Preferences > General
Language Files Directory Default directory to look for language files. N/A
Last Used Auto Window Timeout Last used "Reload every" value in seconds 60 N/A
Last Used Spellcheck LanguageLast language used for spellcheckingN/A
Left-handed UI Position UI elements for left-handers. Intended for use on tablet/pen-input devices. 0 N/A
Level Of Update AutomationThis setting holds the level of automation in the automatic update system. The range is from 0 to 2, where 0 is no checking and 2 is automatic installation of security updates2N/A
Limit Paragraph Width Limit width of line to width of viewport 0 N/A
Limit Task Bar Attention To Personal Chat Messages Notify about new chat messages if they are to me 0 N/A
Local CSS File User CSS file. Empty file generated in /styles/user.css user.css Settings > Preferences > Advanced > Content > Style options
Local CSS Files Directory User style sheets directory /styles/user/ N/A
Localhost In DnD Add "localhost" to file URLs when using drag and drop. UNIX only 0 N/A
Max Console Messages Maximum number of error messages to allow in error console 512 N/A
MIME Headers Style File CSS file for "Display all headers" /styles/mimehead.css N/A
MIME Style File CSS file for email, news, and newsfeed display /styles/mime.css N/A
Mail View Accountinfo Splitter Position of splitter in account info window N/A
Mail View Hotlist Splitter Position of splitter in mail window N/A
Mail View List Splitter Position of splitter in mail list N/A
Mail View Mode
  • 0 = vertical
  • 1 = horizontal
  • 2 = list only
 0 N/A
MainBar Alignment Position of main button bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 2 Toolbars > Customize
Map Meta Button To Alt Button UNIX only 0 N/A
Mark As Read Automatically 0 N/A
MathML CSS File /styles/mathml.css N/A
Max Console Messages Maximum number of messages displayed in the error console 512 N/A
Max Direct History Lines Maximum number of typed-in URLs 200 N/A
Max Global History Lines Maximum number of items in global history 1000 Settings > Preferences > Advanced > History
Max Marquee Loops Maximum number of loops for marquees (-1 = infinite) -1 N/A
Max Number Cached Bitmaps Avoid increasing value for Windows 95, 98, and ME. Windows only 100 N/A
Max Web Workers Per Session The maximum number of Web Worker instances to allow per browser session 128 N/A
Max Web Workers Per Window The maximum number of Web Worker instances to allow per scripting environment 16 N/A
Max Window History Lines Maximum number of window history items 50 Settings > Preferences > Advanced > History
Max width for bookmarks in menu Maximum width for items in the Bookmarks menu -1 N/A
Maximize New Windows Open new windows/pages maximized if possible. Available options:
  • 0 = Remember last size
  • 1 = Always maximize
  • 2 = Always maximize, including pop-ups
  • 3 = Always cascade
  • 4 = Tile all
 1 Settings > Preferences > Advanced > Browsing
Maximum Font Size Do not allow fonts larger than value in pixels 10000 N/A
Maximum bookmark folder depth Maximum allowed bookmark folder depth 1000000 N/A
Maximum length of created time string Maximum allowed length of created time string 128 N/A
Maximum length of description Maximum allowed length of bookmark description 32767 N/A
Maximum length of favicon file name Maximum allowed length of bookmark favicon file name 2048 N/A
Maximum length of shortname Maximum allowed length of bookmark shortname 128 N/A
Maximum length of thumbnail file name Maximum allowed length of bookmark thumbnail file name 2048 N/A
Maximum length of title Maximum allowed length of bookmark title 2048 N/A
Maximum length of url Maximum allowed length of bookmark url 2147483647 N/A
Maximum length of visited time string Maximum allowed length of visited time string 128 N/A
Maximum number of bookmarks Maximum total number of bookmarks 1000000 N/A
Maximum number per folder Maximum allowed bookmark count per folder 1000000 N/A
Media Style File Style for runtime generated media page /styles/media.css N/A
Menu Configuration Configuration file for menu setup. Empty string = use default "" Settings > Preferences > Advanced > Toolbars
Message Style File Style file for runtime generated message pages /styles/message.css Settings > Preferences > Advanced > Toolbars
Min Allowed GDI Resources Attempt to free system resources when low by value in percentage. Windows only 20 N/A
Minimum Font Size Minimum font size used, in pixels
  • Windows: 6
  • Mac, UNIX: 9
 Settings > Preferences > Advanced > Fonts
Mouse Configuration Empty string = use default mouse.ini "" Settings > Preferences > Advanced > Shortcuts
Newest Seen Version Last seen version number in notification. Set automatically by version check N/A
NavigationBar Alignment Position of site navigation bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 0 Toolbars > Customize
NavigationBar Auto Alignment Display navigation bar when needed 0 N/A
New Window Create new window for each link clicked? (Opposite of "Reuse existing page") 0 Preferences > Windows > Advanced
NewWinSize Default size of new windows. Setting is UNIX only, syntax is x, y -1,-1 N/A
No Doc Open Disable document open (Page > Open) 0 N/A
No Doc Save Disable document save (Page > Save As) 0 N/A
No Local File Block browsing of local files. Mainly used for kiosk mode 0 N/A
No Open Do not allow opening any file. Windows only 0 N/A
No Save Do not allow saving any file. Windows only 0 N/A
Number Of Hits Preferred number of search results per page. 0 = use search engine's own default 0 Settings > Preferences > Search
Number Of Speed Dial Columns Number of Speed Dial columns 0 Speed Dial > Configure
Offline Mode Work in offline mode 0 File > Offline mode
Open Dialog Under Mouse Launch dialog where mouse pointer is already located. UNIX only 0 N/A
Open Dragged Link In BackgroundOpen in background window when dragging link in page0N/A
Open New Window in Background Opens new window in background 0 N/A
Open Page Next To Current Place new tab next to active on tab bar 0 Settings > Preferences > Advanced > Tabs
Opera Directory Path to user data directory System dependent N/A
Opera Local DirectoryOpera home (write) directory that is not part of the roaming profile /profile/ N/A
Opera Turbo Mode Opera Turbo Mode
  • 0 = auto on slow connections
  • 1 = on
  • 2 = off
 2 Settings > Preferences > Webpages > Opera Turbo
Opera Unite exit policy Decides if a dialog should be shown when Unite is running, or if Opera should be exited/hidden automatically 1 N/A
Operator Cache Directory4 Used to store help files locally permanently [profile folder]\cache\cacheOp N/A
Overrides File File where host overrides are saved override.ini N/A
PageBar Alignment Position of page bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 2 Toolbars > Customize
PageBar Auto Alignment Display page bar when needed 0 N/A
PageBar Open URL On MiddleClick Open url in clipboard when creating a new page 1 N/A
Pagebar HeightHeight of page bar if it has been resized0N/A
Pagebar WidthWidth of page bar if it has been resized0N/A
Panning mode Activate horizontal panning. UNIX only 0 Settings > Preferences > Advanced > Shortcuts
Permanent Homepage Removes all UI to change the home page and startup type 0 N/A
PersonalBar Alignment Position of personal bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 0 Toolbars > Customize
PersonalBar Inline AlignmentPosition of the tab inline personal bar2N/A
Plugin Path Plug-in path, delimit multiple paths by semicolon Opera\Program\Plugins; \Opera\plugins
  • Windows, Mac: N/A
  • UNIX: Settings > Preferences > Advanced > Content > Plug-in options
Plugins Style File CSS file for opera:plugins /styles/plugins.css N/A
Popup Button Help Enable tooltips 1 N/A
Popup Console On Error Always display error console for JavaScript/ECMAScript errors 0 Settings > Preferences > Advanced > Content
Preferences Version Internal flag for upgrades 2 N/A
Preferred Mail Body Mode
  • 0 = prefer text/plain
  • 1 = prefer text/html
  • 2 = force text/plain
  • 3 = decided by individual mail account
 1
Private Mode Style FileStyle for runtime generated opera:private page /styles/private.css N/A
Protocols List Server Timestamp Timestamp of the handler-ignore.ini file which is currently available at the server. This value is different from ProtocolsWLTimeStamp if an handlers-ignore.ini file update is available on the server, but the update was not yet downloaded and installed. 0 N/A
Protocols List Timestamp Timestamp of the currently used handler-ignore.ini file, used when checking for updates. 0 N/A
RTL Flips UI Move scrollbars and other UI elements to the opposite side when displaying right-to-left content 1 N/A
Recovery Strategy Last used window recovery strategy 1 N/A
Region LocaleSets which locale settings to use for the region of the world you are in. Setting is sent from the Autoupdate server.N/A
Rendering mode Set rendering mode to use at startup
  • 0 = Normal
  • 1 = SSR
  • 2 = CSSR
  • 3 = AMSR
  • 4 = MSR
  • -1 = Fit to width
 0 N/A
Report Timeout For Usage Statistics Set report timeout (in minutes) for usage statistics in order to alleviate testing 60 N/A
Restart Unite Services After Crash Option to restart Opera Unite services after a crash 1 N/A
Reverse Button Flipping Choose to revert left-handed mouse configuration for flip actions. Default set by system Preferences > Mouse and keyboard
Run Email In Terminal UNIX only 0
Run News In Terminal UNIX only 0
Run Source Viewer In Terminal UNIX only 0 Settings > Preferences > Advanced > Programs
SDI Document interface to use as default
  • 0 = Simplified tabs
  • 1 = Single Document Interface
  • 2 = Multiple Document Interface
  • Windows, UNIX: 0
  • Mac: 1
 Preferences > Windows
SSR Max Width Max width in SSR/CSSR, effectively the column width 240 N/A
Save As Text Line Length Number of characters per line when saving documents as text 80 N/A
Save Password Protected Pages Allow saving password-protected pages to sessions 1 N/A
Save With Images Use Subfolder Save With Images saves images in a subfolder 1 N/A
Save policy for bookmarks Save policy used when bookmarks have changed 3 N/A
Scale Default document zoom, in percent. 100 Preferences > Windows
Script Spoof navigator.userAgent identifies as
  • 0 = Same value as Spoof UserAgent ID
  • Global values:
  • 1 = Opera
  • 2 = Mozilla
  • 3 = Internet Explorer
  • Site-specific values:
  • 4 = Mozilla, Opera not mentioned
  • 5 = Internet Explorer, Opera not mentioned
 0 N/A
Scroll Is Pan Enable grab-and-scroll mode 0
Search Field On Error Pages Adds a form with a search field on error pages using the user's default search engine 0 N/A
Search Type Search engine to use as default. Order determined by search.ini 0 Settings > Preferences > Search
Show Add Speed Dial Button Show the [+] Speed Dial button for adding new dials 1 Speed Dial > Configure
Show Address In Caption Display URL rather than page title in title bar 0 N/A
Show Attachments Inline Display email attachments inside message (pre-Opera 8 style) 0 N/A
Show Bookmarks In Addressfield Autocompletion Include bookmarks when auto-completing the address field 1 N/A
Show Close All But Active Dialog Display confirmation dialog when closing all pages but active 1 N/A
Show Close All Dialog Display confirmation dialog when closing all pages 1 N/A
Show Close Buttons Show close buttons on each tab 1 Settings > Preferences > Advanced > Tabs
Show Crash Log Upload DialogShow crash log upload dialog after crash1N/A
Show Default Browser Dialog Show default browser dialog from second start-up. Windows only 1 Settings > Preferences > General > Default browser
Show Delete Mail Dialog Display confirmation dialog before deleting messages 1
Show Disable JS Checkbox Show Disable JavaScript checkbox in JavaScript dialogs 1
Show Download Manager Selection DialogShow the download manager selection dialog where the user can choose a preferred tool1N/A
Show Dropdown Button In AddressfieldRestores the dropdown button inside the address field0N/A
Show E-mail Client Display Opera's messaging clients 1 N/A
Show Encoding Mismatch Dialog Show a dialog when the encoding of a message is outside the specified email encoding 0
Show Exit Dialog Prompt user for confirmation before quitting
  • Windows, Mac: 0
  • UNIX: 1
 Settings > Preferences > Advanced > Browsing
Show Full URL Show the full URL including all parameters in the address field 0 Settings > Preferences > Advanced > Browsing > Show full web address in address field
Show Geolocation License Dialog Show the Geolocation license/privacy dialog on next use 1 N/A
Show Gesture UI Show the mouse gesture UI when performing a gesture 1 Settings > Preferences > Advanced > Shortcuts > "Enable mouse gestures/Enable visual hints"
Show HTML Parsing Errors Report HTML parse errors to the error console 0 N/A
Show Hidden Toolbars While Customizing Display all toolbars when customizing 0 Toolbars > Customize > "Show hidden toolbars while customizing"
Show History In Addressfield Autocompletion Show history in address field autocompletion. 1 N/A
Show Images
  • 1 = No images
  • 2 = Cached only
  • 3 = All images
 3 Settings > Preferences > Advanced > Content
Show MSIMG32 Warning Show MSIMG32 upgrade warning on W9x (Windows only) 1 N/A
Show Mail Error Dialog Show special dialog instead of console when mailer errors are posted to the console 1 N/A
Show Mail Header Toolbar Show styled version of mail/news headers 1
Show Menu Show main menu bar 1 UNIX only: keyboard shortcut Alt + F11
Show Network Speed Notification Show notification when detecting fast or slow network 1 Settings > Preferences > Webpages > Opera Turbo Details
Show New Opera Dialog Display a dialog if a new version is available when checking 1
Show Notification For Blocked Popups Display notification when pop-ups are blocked 1 Settings > Preferences > Advanced > Notifications
Show Notification For Finished Transfers Display a small pop-up when downloads are completed 1 Settings > Preferences > Advanced > Notifications
Show Notification For New Messages Display a small pop-up when new email or news items arrive 1 Settings > Preferences > Advanced > Notifications
Show Notification For No New Messages Display a small pop-up when there are no new messages 0 N/A
Show Notifications For Widgets Display a small pop-up in connection with widget activity 1 Settings > Preferences > Advanced > Notifications
Show Opera Turbo Info Set if we should open an Opera Turbo information page 1 N/A
Show Private Mode Introduction Page Show introduction page when first opening a new private tab 1 N/A
Show Problem Dialog Show problem dialog after a crash 1
Show Progress As Popup Progress bar pops up at bottom of page
  • 0 = Inside address field
  • 1 = Pop up at bottom
  • 2 = Simple inside address field
  • 3 = Off
 0 View > Toolbars > Customize
Show Progress Dialog Display address bar 1 View > Toolbars
Show ScrollBars Show scrollbars 1 Settings > Preferences > Advanced > Browsing
Show Searches In Addressfield Autocompletion Show searches in addressfield autocompletion. 1 N/A
Show Setupdialog On Start Display first time setup dialog 1 N/A
Show Startup Dialog Display dialog at every startup 0 Settings > Preferences > General > Start and exit
Show Tray Icon Show the Opera icon in the system tray 1 N/A
Show Validation Dialog Display confirmation dialog for webpage validation 1 Settings > Preferences > Advanced > Security
Show Widget Debug Info Dialog Shows dialog with information about widget in debug mode 1 N/A
Show Window Menu Show the Window menu in the main menu 0
Show Window Size Show size of webpage in title bar 0 Settings > Preferences > Advanced > Browsing
Show panel toggle Display panel toggle 0 N/A
Show quick reply Display "Quick Reply" field 1 N/A
Showed Gesture Info Mouse gesture dialog displayed? Set to true after first display 0 N/A
Single Window Browsing Use the current window instead of creating new ones for pop-ups 0 N/A
Skin Directory Directory for placing downloaded skins /skin/ N/A
Skin scale Skin zoom in percentage 100 Tools > Appearance > Skin
Smooth Scrolling Scroll evenly to desired destination in document
  • Windows: 1
  • UNIX, Mac: 0
 Settings > Preferences > Advanced > Browsing
Source Viewer Opera defaults to using a built-in source viewer. To specify external viewer, use full path in quotation marks. Settings > Preferences > Advanced > Programs
Source Viewer Mode Source viewer setting Settings > Preferences > Advanced > Programs
Special effects Allow special effects on UI elements
  • Windows, Mac: 1
  • UNIX: 0
 Tools > Appearance > Skin
Speed Dial File Configuration file for speed dial speeddial.ini N/A
Speed Dial Search Type Search engine to use as default. Order determined by search.ini N/A
Speed Dial State Available options:
  • 0 = Folded ("Show speed dial" message)
  • 1 = Normal view
  • 2 = ReadOnly (as in kiosk mode with -kioskspeeddial)
  • 3 = Disabled (as in kiosk mode)
 1 N/A
Speed Dial Zoom LevelIndicates the current zoom level of the speed dial0N/A
Spellcheck enabled by default Enable spell checker 1 Settings > Preferences > Advanced > Browsing > "Check spelling"
Startup Type Available options:
  • 0 = Use saved session
  • 2 = Use home page
  • 3 = Continue from last time
  • 4 = No windows or pages
  • 5 = Show startup dialog
 3 Settings > Preferences > General
StatusBar Alignment Position of status bar
  • 0 = Off
  • 1 = Left
  • 2 = Top
  • 3 = Right
  • 4 = Bottom
 4 Toolbars > Customize
Strategy On Application Cache What to do when a webpage requests saving offline cache 1 Settings > Preferences > Advanced > Storage > "Use application cache"
Styled First Update TimeoutMaximum time after which an update will be performed even if no styles where got yet2000N/A
Suppress External Embeds Avoid loading external embeds like images in mail and news 1 "View" button on email toolbar > Suppress external embeds
Synchronous decode Decode images until cache is full 1 N/A
Target Destination Where to place pop-ups
  • 0 = New page/window
  • 1 = In current page/window
  • 2 = In background
  • 3 = Ignore pop-up
 0 Settings > Preferences > General
Temporary Download Directory Temporary Download directory N/A
Thumbnail Aspect Ratio XThis value, along with the Y value, determines the aspect ratio of the Speed Dial thumbnails.16N/A
Thumbnail Aspect Ratio YThis value, along with the X value, determines the aspect ratio of the Speed Dial thumbnails.10N/A
Thumbnail Icon Min Height Thumbnail icon min height 114 N/A
Thumbnail Icon Min Width Thumbnail icon min width 114 N/A
Thumbnail Logo Padding Left Right Left and right padding of site logo shown in speeddial thumbnail 130 N/A
Thumbnail Logo Padding Top Bottom Top and bottom padding of site logo shown in speeddial thumbnail 75 N/A
Thumbnail Logo Pos Max X Thumbnail logo pos max X 1200 N/A
Thumbnail Logo Pos Max Y Thumbnail logo pos max Y 300 N/A
Thumbnail Logo Score Banner Thumbnail logo scoring banner 90 N/A
Thumbnail Logo Score Logo ALT Thumbnail logo scoring logo ALT 70 N/A
Thumbnail Logo Score Logo URL Thumbnail logo scoring logo URL 75 N/A
Thumbnail Logo Score Site ALT Thumbnail logo scoring site ALT 35 N/A
Thumbnail Logo Score Site Link Thumbnail logo scoring site link 20 N/A
Thumbnail Logo Score Site URL Thumbnail logo scoring site URL 20 N/A
Thumbnail Logo Score Threshold Thumbnail logo scoring threshold used when looking for page logo for speeddial thumbnail. 75 N/A
Thumbnail Logo Score X Thumbnail logo scoring X 20 N/A
Thumbnail Logo Score Y Thumbnail logo scoring Y 35 N/A
Thumbnail Logo Size Max X Thumbnail logo size max X 800 N/A
Thumbnail Logo Size Max Y Thumbnail logo size max y 199 N/A
Thumbnail Logo Size Min X Thumbnail logo size min X 20 N/A
Thumbnail Logo Size Min Y Thumbnail logo size min y 15 N/A
Timeout value for bookmark save Timeout value in milliseconds to wait before saving bookmark changes 1000 N/A
Tips Configuration Tips configuration file N/A
Tips Meta Configuration Tips configuration meta file N/A
Title Main caption on title bar. Shows standard caption by default; Opera version and page title. Add "%s" to display Opera's build number. N/A
Toolbar Configuration File for toolbar configuration. Empty string = use default toolbar.ini "" Preferences > Toolbars and menus
Transfers Added On Top Display transfers in reverse chronological order 1 "View" drop-down button on transfer page > Show new items on top
TreeView DropDown Max Lines Number of lines in the address field drop-down list 20 N/A
Trust Server Types Determine file handling by MIME type exclusively 0 N/A
Turbo Mode Draw images instantly 1 Settings > Preferences > Advanced > Browsing
UI Property Examiner Set to show quick widget and window properties in a tooltip to aid writing automated tests 0 N/A
Update Delay Delay between reflows in milliseconds 200 N/A
Use External Download Manager Detect and use external download manager 0 N/A
Use HTTP Proxy For All ProtocolsUse HTTP proxy server for all protocols0N/A
Use Integrated Search Use available multi-search field or "Find in page" field instead of dialog for "Find in page" 0 N/A
Use Smiley Images Enable graphical smileys 1 "View" button on email toolbar > Display > Enable smileys
Use Thumbnails Inside Tabs Show thumbnail of tab content inside tabs 1 Settings > Preferences > Advanced > Tabs > "Enable thumbnails in tabs"
Use Thumbnails in Tab Tooltips Display thumbnail of tab content when hovering tabs 1 N/A
Use Thumbnails in Window Cycle Display thumbnail of tab content when cycling through tabs 0 N/A
Use Windows 7 Taskbar Thumbnails Integrate with the Windows 7 taskbar thumbnails (Windows only) 0 N/A
User Email Email address of the user, logged when reporting crash log N/A
User JavaScript Enable or disable the use of User JavaScript. 0 Settings > Preferences > Advanced > Content > JavaScript Options
User JavaScript File Path to directory containing User JavaScript files. To add more than one, separate by comma.
User JavaScript on HTTPS Allow User JavaScript on secure servers. Use with caution. 0 N/A
User Style Info File Name of userstyle.ini file /profile/userstyle.ini N/A
Validation Form Element Form element to use for uploaded file uploaded_file N/A
Validation URL URL to HTML validator http://validator.w3.org/check N/A
Virtual Keyboard Type
  • 0 = normal keyboard
  • 1 = virtual keyboard for the ASUS eee top
 0 N/A
Visited Pages Enable indexing of visited pages 1 Settings > Preferences > Advanced > History
Visited Pages Search Style Style for visited pages search /styles/search.css N/A
Voice Configuration Full path to voice configuration file. Windows only. standard_voice.ini N/A
WML CSS File WML pages use this CSS style /styles/wml.css N/A
Wand Autosubmit Password manager submits forms data automatically 1 N/A
Wand Storage File Path to encrypted storage file for password manager data. Empty string = use default wand.dat "" N/A
Warn Insecure Form Warn before posting form data on insecure servers 0 Settings > Preferences > Advanced > Security
Warn about active transfers on exit Display confirmation dialog for quitting while transfers are active 1 N/A
Warning Page CSS File Style for Fraud Protection warning message /styles/warning.css
WebStorage Style File Style for runtime generated opera:webstorage admin page /styles/webstorage.css N/A
Webfeeds HTML Template File Template file for displaying Web feeds /styles/webfeeds.html N/A
Window Cycle Type Order open pages should be cycled in
  • 0 = In used order
  • 1 = In page bar order
  • 2 = No list
 0 Settings > Preferences > Advanced > Browsing
Window Menu Max Item Width Maximum width of items in Window menu 40 N/A
Window Placement By Opera Override window placement by window manager. UNIX only 1 N/A
Windows Storage File Session save file opera.win File > Sessions > Save session
XML Load External Entities Load external doctype subset and other referenced external entities 0 N/A
XML Validate Validate XML documents when loading them 0 N/A

Note: The entire [VoiceXML] section applies only to Opera for Windows and Zaurus.

[VoiceXML]
Entry: Description: Default: Configure from UI:
ASR Rejection Threshold Confidence level; rejection threshold for automated speech recognition 2 Settings > Preferences > Advanced > Voice > Details
C3N Default Form VoiceXML document for Opera's user interface. Empty string = use default; c3nform.vxml "" N/A
C3N Prelink Phrase Prefix for links to be followed N/A
C3N Postlink Phrase Suffix for links to be followed N/A
C3N Prenick Phrase Prefix for Opera bookmark nicknames N/A
C3N Postnick Phrase Suffix for bookmark nicknames N/A
C3N User Agent Identifier Prefix for Opera commands Opera Settings > Preferences > Advanced > Voice
Command Control And Content Navigation By Voice Enabled Enable C3N. Set to 1 when Voice plug-in is installed 0
Library Location Path to location of Voice libraries. If none specified, Opera's install folder is used. N/A
Mouse Down Cancels Current Voice Stop computer speech if mouse button is clicked 0 Settings > Preferences > Advanced > Voice > Details
PTT Key
  • 0 = None
  • 15 = Insert
  • 19 = Scroll Lock
 19 Settings > Preferences > Advanced > Voice
PTT Key Is Unicode Set any key to be push-to-talk key using Unicode. N/A
PTT Mode Mode for pressing key to talk
  • 0 = Hold to talk
  • 1 = Push to talk
  • 2 = No key
  • 3 = Auto-push to activate
 0 Settings > Preferences > Advanced > Voice
Resources Location Path to voice files, default is Opera's install directory. N/A
TTS CTTS Enable high quality text to speech. Will disable adjusting of speed, pitch, and volume 1 Settings > Preferences > Advanced > Voice > Details
TTS Gender Male = 0, Female = 1 0 Settings > Preferences > Advanced > Voice
TTS Pitch
  • 0 = Very low
  • 1 = Low
  • 2 = Medium
  • 3 = High
  • 4 = Very high
 2 Settings > Preferences > Advanced > Voice > Details
TTS Speed
  • 0 = Very slow
  • 1 = Slow
  • 2 = Medium
  • 3 = Fast
  • 4 = Very fast
 2
TTS Volume
  • 0 = Silent
  • 1 = Very soft
  • 2 = Soft
  • 3 = Medium
  • 4 = Loud
  • 5 = Very loud
 3
UserAgentXml Set client port for external application when using thin client N/A
Voice Log Level Determine output level of voice log
  • 1 = Verbose
  • 2 = Information only
  • 3 = Warnings only
  • 4 = Severe warnings only
  • 5 = Disabled
 5 Settings > Preferences > Advanced > Voice > Details
VoiceXML Enabled Enable VoiceXML. Set to 1 when Voice plug-in is installed 0 Settings > Preferences > Advanced > Voice
VoiceXml Set server port when using thin client N/A
VoiceXmlPlugin Used to switch between multiple .dll files, for testing purposes only. vxmlplugin.dll (Zaurus: vxmlplugin.so) N/A
VoiceXmlServer URL to Voice libraries when using thin client N/A
[Web Server]
Entry: Description: Default: Configure from UI:
Backlog See "backlog" in the listen(2) manpage 10 N/A
Device Opera Unite computer name Opera Unite > Configure
Directory Absolute path for the Opera Unite directory /profile/webserver/ N/A
Enable If false, Opera Unite is completely disabled 1 Opera Unite > Configure
Listen To All NetworksIf false only requests originating from localhost are accepted1N/A
Listen To Local Network If false only requests originating from localhost are accepted 0 N/A
Max Upload Rate (kBps) Maximum upload rate in kilobytes/second 0 Opera Unite > Configure > Advanced Settings
Port Port on which to serve HTTP requests 8840 Opera Unite > Configure > Advanced Settings
Proxy Host Host running the Opera Unite proxy operaunite.com N/A
Proxy Port Port on which the Opera Unite proxy listens 16680 N/A
Resource Configuration Path for separate configuration file /profile/webserver.ini N/A
Service Discovery Enabled Setting this to TRUE allows Opera Unite to start using service discovery 1 N/A
Service Discovery Server Host running the service discovery https://asd.opera.com/1.0/register N/A
Shared Secret Hashed password for authenticating Opera Unite N/A
Trusted Repositories File Trusted repositories /profile/trusted_repositories.ini N/A
UPnP Enabled Allow Opera Unite to use UPnP port forwarding 1 Opera Unite > Configure > Advanced Settings
UPnP Service Discovery Enabled Allow Opera Unite to use UPnP service discovery 1 N/A
Use Opera Account Setting this to FALSE allow Opera Unite to start without logging onto an Opera Account, and access will be set to Local only 1 N/A
User Opera Unite username N/A
Webserver Always On Force Opera Unite to start automatically when Opera is launched 1 N/A
Webserver Used If set, user has used Opera Unite 0 N/A
robots.txt Enabled Enables the creation of a standard robots.txt file, prohibiting robots from crawling your Opera Unite personal server 1 N/A
[Widgets]
Entry: Description: Default: Configure from UI:
Widgets File Path to file listing installed widgets, by default placed in the profile directory widgets.adr N/A
[Windows]
Description: Format:
Each of the entries in this section of operaprefs.ini takes the following format x, y, width (px), height (px), state (0 = normal, 1 = minimized, 2 = maximized)
[Workspace]
Entry: Description: Default: Configure from UI:
Button Style UNIX only
  • 0 = KDE2
  • 1 = Windows
  • 2 = KDE1/Classic
 0 MDI menu > Decoration
Button Type Bit field. UNIX only
  • 1 = Close
  • 2 = Minimize
  • 4 = Maximize
  • 8 = Restore
 255 N/A
Window Border Width Width of border for non-maximized pages in pixels. UNIX only 1 N/A

Support

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