Opera FAQs, Tips, Tricks & Tweaks

User JavaScript is a powerful tool and it can be used for many purposes, including:

• Fixing broken scripts on Web pages. Opera uses browser.js to automatically fix incompatible Web pages, out of date scripts, and pages that inadvertently block Opera.
• Enhancing Web pages by changing or adding your own content to the page.

Installing/Uninstalling User JavaScripts

If you don't have UserJS directory, create a directory with name userjs (preferably inside profile directory) and enter path to it in Tools > Preferences... > Advanced > Content > JavaScript Options... > User JavaScript files

Path to User JavaScript files

• To install, place User JavaScript file (*.js or *.user.js) inside User JavaScript directory.
• To uninstall, remove corresponding User JavaScript file from User JavaScript directory.
• To disable, change corresponding User JavaScript file extension from *.js to *.js.x

Download

Download (size: 48.3 KB) all the following User JavaScripts in a single zip file, unzip and place it inside User JavaScript directory.

1. Autosizer
2. Breadcrumb URL
3. Clean URI
4. Cooliris alike
5. Gallery crawler
6. Get feed link
7. Image thumb
8. Link alert
9. Power drag
10. Linkify URL
11. View Selection Source
12. Ultimate Search Highlighter

Useful User JavaScripts

1. Autosizer
   Autosizer will enhance image viewing in Opera by adding five different sizing modes to images: "Original", "Shrink to Fit", "Maximize", "Fit to Width" and "Fit to Height". "Shrink to Fit" is enabled by default. Simply click on the image to view in next mode or hold down Shift key while clicking to view in previous mode. Move cursor to top right corner to view the menu. See help for more information.

   
   Autosizer

2. Breadcrumb URL
   Breadcrumb URL will place link to each directory of current URL at the top left corner of the page. Useful if you browse without address bar or browse in full screen mode.

   
   Breadcrumb URL

3. Clean URI
   Clean URI will recognise links that use redirected URLs (example: http://www.google.com/url?q=http://winmerge.sourceforge.net/ ) and replace them with the direct URL.

   
   Clean URI

4. Cooliris alike
   Similar to Cooliris extension for Firefox and helps to preview links without leaving current tab. Hold Ctrl key and hover any link to open preview window in top right corner of current tab. Size of preview window can be changed to 3 heights by clicking "Restore" icon.

   
   Cooliris Alike

5. Gallery crawler
   Gallery crawler adds link to next and previous image so pictures numbered sequentially can be viewed without flipping through links, ads and poor page design.

   
   Gallery crawler

6. Get feed link
   Get feed link will place feed icons at the top left corner of the page. Useful if you browse without address bar or browse in full screen mode or if you need feed link URL.

   
   Get feed link

7. Image thumb
   Image thumb will show thumbnail in bottom left corner when you hover an image link. Hold Ctrl key to view image in original size.

   
   Image Thumb

   This UserJS breaks functioning of autosizer UserJS.

8. Link alert
   Link alert identifies links to specific file types, and displays an appropriate icon when the link is hovered.

   
   Link alert

9. Power drag
   Power drag will help you to resize textareas, select boxes, iframes, objects, images or input fields by holding Shift key and then dragging lower right corner of an item. Double click lower right corner to restore the original dimensions. You can enable the dragging corner always, or use another modifier key.

   
   Power drag

10. Linkify URL
    Linkify URL makes text http/https/ftp URLs clickable.

    
    Linkify URL

11. View Selection Source
    View Selection Source allows you to see HTML source of any part of a page, it’s very useful for web developers. If you don't know how to edit menu setup see this and add the following under [Hotclick Popup Menu].

    Item, "View selection source"="Go to page, "javascript:opera.getSelectionSource()""

    
    View Selection Source

12. Ultimate Search Highlighter
    Ultimate Search Highlighter will show search bar at the top and can show number of search results, jump to next instance of highlighted term or previous (hold Shift key and click on term in toolbar) and supports RegExp highlighting. Move cursor to top to show search bar after timeout period. Get USH button or search field from here or create a search engine with the following.

    javascript:opera.USH.run(opera.USH.check='%s','newSearch');

    
    Ultimate Search Highlighter

Opera Launcher was created using AutoHotkey. It can

• create daily backup of bookmarks, notes & sessions with date stamp. Bookmarks & notes backups will be created in profile\backups directory.
• disable crash startup dialog.
• delete quick find search histories.
• empty Temporary Download Directory (not Cache Directory).
• send keystrokes after starting Opera.
• remove Opera title bar.
• restart Opera.
• change Speed Dial background image automatically.

Download (size < 210 KB), unzip, place OperaLauncher.exe inside Opera installation directory, C:\Program Files\Opera and run it to launch Opera. The following settings dialog will be shown when you run it first time.

Opera Launcher settings dialog

Keystrokes
Keystrokes can be used to perform an action after starting Opera. ^=Ctrl, !=Alt and +=Shift

Examples:

Restart
Use Restart Opera button^! or create new keyboard shortcut/mouse gesture in application section with the following action.

Execute program, "C:\Program Files\Opera\OperaLauncher.exe", "/ro"

^! If your path to OperaLauncher.exe is different change it in toolbar configuration file after closing Opera.

Restore bookmarks/notes
To restore previous version of bookmarks/notes file, close Opera, move previous version of opera6*.adr/notes*.adr from profile\backups directory to profile directory and rename it to opera6.adr/notes.adr.

Changelog

Date	Changes
Oct 24, 2009	Option to change Speed Dial background image automatically. Added help button.
Jul 23, 2009	Option to hide Opera title bar. Thanks to lunigma. Opera restart.
May 11, 2009	Updated for Opera 10.00 Alpha Build 1413. Performance improvements. Tray icon balloon error message. Transparent icon.
Feb 23, 2009	Option to delete old backup files. To disable, set it to 0. Sessions backup will be created every time Opera starts.
Feb 10, 2009	Didn't empty temporary download directory in non-English versions of Windows. Fixed.
Feb 8, 2009	Command line parameters passed to Opera. Thanks to itcpeter. Updated for Opera 10.00 Alpha Build 1139. Opera Launcher can be placed anywhere, but path to Opera Installation Directory should be added in OperaLauncher.ini file.
Jan 8, 2009	Option to send keystrokes.
Nov 26, 2008	Option to empty temporary download directory.
Nov 23, 2008	Initial release.

Sometimes we need to specify two parameters for search as in the following search.

http://images.google.com/images?imgtype=face&q=monkey

It is possible to create search engine for the above using JavaScript.

By creating a search engine with the following JavaScript in address field, you can search Google Images from address bar by typing <search engine keyword><space><search parameter 1><space><search parameter 2> (example: gi face monkey)

javascript:var s='%s';var p=s.indexOf('+');if(p>-1){var s1=s.split('+');var s2=s.slice(p+1)};window.location.href='http://images.google.com/images?imgtype='+s1[0]+'&q='+s2;

To create search engine for another site, modify images.google.com/images?imgtype='+s1[0]+'&q='+s2; part in the above JavaScript. When you perform search, s1[0] will be replaced by first parameter & s2 with second parameter.

If <search parameter 1> is more than one word use the following JavaScript. Use dot instead of space as separtor between search parameters.

javascript:var s='%s';var p=s.indexOf('.');if(p>-1){var s1=s.split('.');var s2=s.slice(p+1)};window.location.href='http://images.google.com/images?imgtype='+s1[0]+'&q='+s2;

Update: Apr 28, 2008

Bookmarks search history

Close Opera, open opera6.ini from profile directory and remove unwanted line(s) starting with the following under [Matches] section.

Bookmarks View       Searches in manage bookmarks
Bookmarks View Small Searches in bookmarks panel
File_types_treeview  Searches in Tools → Preferences → Advanced → Downloads
Groups_treeview      
History View         Searches in history
History View Small   Searches in history panel
Input_treeview       Searches in keyboard setup, mouse setup & voice
Links View Small     Searches in links panel
Mail View            Searches in mail/feed
Notes View           Searches in notes
Notes View Small     Searches in notes panel
Server_treeview      Searches in server manager (cookies & wand)

[Matches]
Bookmarks View=""opera", "https""
Bookmarks View Small=""software""
File_types_treeview=""exe", "rar""
History View=""opera", "google", "www""
History View Small=""my""
Input_treeview=""gesture", "alt", "shift", "ctrl""
Links View Small=""unread""
Mail View=""rss""
Notes View=""bugs", "@""
Notes View Small=""shortcuts""
Server_treeview=""google""

Update: Jan 25, 2007

Keyboard Shortcuts

Shift + Click/Enter/Left click - Bookmark/Link/Go to Web Address/Search will open in new tab

Ctrl + Shift + Click/Enter/Left click - Bookmark/Link/Go to Web Address/Search will open in background tab

Mouse Gestures

Point link, hold right mouse button and move down - Link will open in new tab

Point link, hold right mouse button and move down then up - Link will open in background tab

Others

To open search results & bookmarks in new tab
Opera 9: Tools → Preferences... → Advanced → Tabs → [DISABLE] Reuse current tab
Opera 8: Tools → Preferences... → Advanced → Browsing → [DISABLE] Reuse current tab

Configure mouse middle click action
Tools → Preferences... → Advanced → Shortcuts → Middle-Click Options... [or] Shift+Mouse middle click

Mouse middle-click options