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...
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
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.
Adds icons to buttons and/or menus.
Restores the default image style used for top-level images in previous versions of Firefox.
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.
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.
FolderFlags Requires Restart
Allows users to edit the flags Thunderbird sets on folders.
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.
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.
Edit Bookmark Plus Requires Restart
Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.
Replacement of OpenBook addon
lolifox - Fierr MOD Requires Restart
Replaces the error page with a lolifox appearance with additional features.
Xclear Requires Restart
Safari-like icons in the URL, search and find fields to clear their contents.
ImageTweak: zoom/rotate images and videos! Requires Restart
A no-clutter image viewer for Firefox that allows you to zoom, rotate and display images/videos against a custom background. ImageTweak is a must-have addon for any photographer or photography-loving user.
Key config Requires Restart
This add-on provides configurable keyboard shortcuts for several actions and a dialog to customize them.
All shortcuts can be redefined in Tools -> Key settings