Most Popular
All »
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1.
Adblock Plus
13,910,639 users
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2.
NoScript
2,166,592 users
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3.
Speed Dial
789,780 users
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4.
MR Tech Toolkit
528,211 users
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5.
Add-on Compatibility Reporter
340,801 users
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6.
AutoPager
260,966 users
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7.
LastPass Password Manager
230,957 users
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8.
DOM Inspector
207,873 users
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9.
wmlbrowser
120,295 users
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10.
Adblock Lite
117,980 users
Featured Extensions
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Generate a disposable, reusable and anonymous real mail address when you need it.
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The HootBar from HootSuite allows you to post messages to Twitter and other social networks from the Firefox address bar. (Note: version 4.0, which includes the Hootlet, has been submitted to Mozilla and will be released shortly)
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URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.
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Add places to your foursquare to-do list or check-in from within your browser. foursquare helps you explore the world around you. Keep up with friends, get insider tips, and unlock discounts and rewards.
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Creates a subpage for clearing everything, history, passwords, or just site settings for small time durations. Also adds option to clear everything on shutdown (You'll need to add Quit Fennec in order to have a quit button).
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Finds apps that can handle the content on the page
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Use any image as your homepage background
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View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
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Annoyed by adverts? Troubled by tracking? Bothered by banners? Install Adblock Plus now to regain control of the internet and change the way that you view the web.
A short video overview is available at http://www.youtube.com/watch?v=oNvb2SjVjjI
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Personas for Firefox Mobile
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Add a "Clear History" button to the Firefox preferences.
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This add-on gives you the ability to have your home button like in a desktop browser.
You can save from 1 to 4 links to open quickly with your new home button.
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Mozilla Firefox with Twitter instantly connects you with what's happening in the world. Search people and topics on Twitter using @ and # from the address bar.
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Make fonts larger and more readable
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Cleans up hard-to-read articles on the Web
Up & Coming Extensions
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Removes formatting from copied text.
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Make Firefox for Android use the whole screen
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Tools for working with web pages in Firefox Mobile
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Adblocklite is a fork of the Adblock Plus version 1.3.10 (classic UI) extension for blocking advertisements on the web.
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Enable/Disable JavaScript with Toolbar button (incl. Ctlr+Q shortcut).
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Simple add-on for settings HTTP, SOCKS and SSL proxy settings. Works by default with Orbot: Tor on Android. Developed by the Guardian Project at https://guardianproject.info
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Reinstates the extensions.checkCompatibility preference without respect to the current application version.
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Minimum and fast URL blocker.
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Sets Flash objects to "Low Quality" to improve performance on slower platforms (i.e. older computers, netbooks, and Firefox Mobile).
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Create and manage add-ons made from Greasemonkey and Scriptish user scripts
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Make fonts larger and more readable
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The greatest user script engine on the Internet (a fork of Greasemonkey).
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View mobile or desktop versions of sites, by impersonating other browsers' useragent headers.
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This add-on gives you the ability to have your home button like in a desktop browser.
You can save from 1 to 4 links to open quickly with your new home button.
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Cleans up hard-to-read articles on the Web
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Save pages for reading offline
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DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.
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Add a "Clear History" button to the Firefox preferences.