Watch videos anywhere in cinema mode without leaving the website you're on.
This extension provides various customization options for the Adblock Plus user interface.
Right Links Requires Restart
This extension allows to open links in new tabs with right-click directly and using “long” left-click.
This is very useful for touchpads on notebooks and for mice without middle button.
Manage your installed personas (lightweight themes).
Custom Buttons Requires Restart
Gives a possibility to create custom toolbarbuttons...
The Add-ons Manager slims down!
This add-on reduces the height of entries in the Add-on Manager, so you can display more of them at a time.
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
YouTube Video Player Pop Out lets you pop out YouTube videos so that you can watch YouTube videos while you surf.
Google Hangouts Web Messenger brings Google Hangouts right into your browser to chat with your friends.
Restores the default image style used for top-level images in previous versions of Firefox.
Adds icons to buttons and/or menus.
Duplicate This Tab Requires Restart
This add-on provides the much needed feature update of Tab Duplication to Mozilla Browsers. Features Supported include Duplication of Browser Tabs, Detaching Tabs and Merging All Windows.
Open With for Internet Explorer sends pages from Mozilla Firefox to Internet Explorer.
See more search results etc. on one page, concatenating several pages together...
Compact Menu 2 Requires Restart
Add a compact menu button to the navigation toolbar, and hide the menu bar.
KeePass Helper Requires Restart
Adds a hostname, URL, or email account ID to the application's window name (e.g., that of Firefox or Thunderbird) to make it recognizable to password manager utilities like KeePass.
FolderFlags Requires Restart
Allows users to edit the flags Thunderbird sets on folders.
This extension enables true full screen mode in SeaMonkey for HTML5 video players, slide-shows, etc. and also for full screen invoked manually with the F11 key.
Active Stop Button Requires Restart
Stop gif animation with button, context menu or Esc key
Sync engine for Stylish with backup / restore facility.