Add-ons
To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!
CloseWelcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.
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User Agent Changer
Requires Restart
Adds a menu and a toolbar button to change the user agent of a browser.
Page Hacker Revived
Requires Restart
Adds a toolbar to edit and format the current page
Fire IE (FireIE, Enhanced IE)
Requires Restart
Embeds Internet Explorer(IE) to use the powerful Firefox add-ons.
Not only an enhanced IE Tab, but also an enhanced Internet Explorer with Adblock Plus and FireGestures support.
Switch to the IE engine in one click and dismiss your IE.
Window Master
Functionality for multiple screens and windows. Easily open links in other windows or on other screens, move or merge tabs, and move or merge entire windows. With graphical controls for grid positioning.
Generic CSS Loader 2
Requires Restart
A very basic CSS loader for Firefox. No fancy features, just an alternative to userChrome and userContent files.
RequestPolicy Sync
Stylish Sync
Cycle Collector Analyzer, about:ccdump
Display the graph created by cycle collector. Open "about:ccdump" page after the installation.
Color Transform
Transform the colors of entire web pages or selected elements. Combine predefined themes with basic transforms. Save transforms for specific web domains.
Send to xNode
Requires Restart
Sends content to xNode for analysis. Provides information on domain names, IP addresses, eMail addresses, certificates and much more.
Copy Pure Text
Requires Restart
Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.
Element Inspector
In the DOM Inspector,quickly navigate to the any elements
mxr-vim
foxmeter
Requires Restart
An HTTP analyzer addon for Firefox, fork from HttpFox with features like: summary by host, and more coming soon
eCleaner
Requires Restart
Clears preferences left by extensions after uninstallation
Fetch Text URL (fix version)
Requires Restart
Open text URLs from the context menu.
bbeContainer
Requires Restart
an extension that allows users to edit local files with browser-based editors.
No More Install Delay
UPDATE: XPI delay has been removed in Firefox 40!
Disable the install delay in Firefox. New 2.0 version now includes GreaseMonkey scripts!
Unlike similar addons, this works on Firefox 4 and beyond.
Restartless Restart
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
To create your own collections, you must have a Mozilla Add-ons account.
