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Choose from thousands of extra features and styles to make Firefox your own.
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Content Scrollbar
Requires Restart
Easily navigate through the long pages. This extension will generate clickable markers for all the headings of a page and places them proportionately on the scrollbar. This extension is a port of Chrome's 'Scrollbar of Contents' to Firefox.
Custom Geometry
Requires Restart
Resizes and positions the Firefox window according to your settings.
Customizations for Adblock Plus
This extension provides various customization options for the Adblock Plus user interface.
CuteMenus - Crystal SVG
Requires Restart
Note from Mozilla: This add-on has been discontinued. Try Menu Icons Plus instead.
Adds icons to all menus along with some other features...
Disable About Something
Requires Restart
Provides ability to disable "about:*" pages by the configuration.
Disable about:config
Requires Restart
Disable about:config feature of Firefox and Thunderbird.
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
Fast Close Tabs
Requires Restart
Closing the window closes the active tab instead of the window.
FAYT Revived
Requires Restart
Regain possesion of your good "Find As You Type" search bar in Firefox and SeaMonkey!
FfChrome
Requires Restart
FfChrome is a nifty little addon that slims and trims your context menu on the fly for simplicity, ease of use, easy access and eliminates the clutter. One addon that makes your day-to-day life easier by increasing productivity.
Firesizer
Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
FireTray
Requires Restart
A system tray extension for Linux and Windows, allowing to set up custom icon, hiding to tray instead of closing, display the number of unread messages in mailing applications, and other features ...
To create your own collections, you must have a Mozilla Add-ons account.