Featured Extensions

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QuickMark Featured

A quick and minimalistic way to create bookmarks.

Rated 5 out of 5 stars (48)
11,114 users

uMatrix Featured

Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc.

Rated 5 out of 5 stars (96)
38,418 users

Master Password+ Requires Restart Featured

Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows

Rated 4 out of 5 stars (132)
24,008 users

Clean Links Featured

Converts obfuscated or nested links to genuine clean links.

Eg: http://somesite.com/?to=www.example.comhttp://www.example.com/

Rated 5 out of 5 stars (111)
42,721 users

Adblock Plus Pop-up Addon Requires Restart Featured

Adblock Plus Pop-up Addon extends the blocking functionality of Adblock Plus to those annoying pop-up windows that open on mouse clicks and other user actions.

Rated 5 out of 5 stars (203)
1,031,242 users

FireSSH Requires Restart Featured

FireSSH is a free, cross-platform SSH terminal client for Mozilla Firefox. Written entirely in Javascript!

Rated 4 out of 5 stars (92)
28,881 users

Proxy Switcher Featured

Access to the complete Firefox's proxy settings right from a toolbar panel

Rated 5 out of 5 stars (20)
37,884 users

Download YouTube Videos as MP4 Featured

An extension that adds direct links to download YouTube videos as MP4 and FLV. It has a simple interface and it downloads videos directly from YouTube. The extension integrates with YouTube's interface and adds a download button below the player.

Rated 4 out of 5 stars (425)
1,057,951 users

Tab notifier Featured

Enables desktop notifications like in Chrome (e.g. Gmail, imo.im) and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!

Rated 4 out of 5 stars (44)
4,697 users

Add to Search Bar Featured

Make any pages' search functionality available in the Search Bar (or "search box")...

Rated 5 out of 5 stars (649)
73,662 users

FoxyProxy Standard Requires Restart Featured

FoxyProxy is an advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. For a simpler tool and less advanced configuration options, please use FoxyProxy Basic.

Rated 4 out of 5 stars (362)
264,701 users

ChatZilla Requires Restart Featured

A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (125)
123,329 users

Fastest Search - Browse/Search Faster! Featured

Search/browse faster than ever! Ctrl-Shift-F for whole-word/regex/all tabs/diacritic search;Create custom engines;Select-n-search with Smart SearchBox;Preview results;Auto copy plain text, drag-n-drop save images/open links. http://y2u.be/gDlLrVZ54L0

Rated 5 out of 5 stars (173)
7,396 users

Decentraleyes Featured

Protects you against tracking through "free", centralized, content delivery. It prevents a lot of requests from reaching networks like Google Hosted Libraries, and serves local files to keep sites from breaking. Complements regular content blockers.

Rated 5 out of 5 stars (69)
47,152 users

Pray Times! Requires Restart Featured

Display daily Muslim prayer times.

Rated 5 out of 5 stars (371)
8,592 users

SmoothWheel Requires Restart Featured

Scrolls the page smoothly when scrolling the mouse wheel (or keyboard arrows if enabled).

Rated 5 out of 5 stars (267)
35,564 users

VimFx Featured

Short, Vim-style keyboard shortcuts for browsing and navigation, for a near mouseless experience.

Rated 5 out of 5 stars (163)
15,718 users

DownThemAll! Featured

The first and only download manager/accelerator built inside Firefox!

Rated 4 out of 5 stars (1,795)
1,223,323 users

Print Edit Requires Restart Featured

Allows editing of web page content while in Print Preview mode, prior to printing or saving as HTML or PDF. Compacts the layout and removes unwanted content such as adverts, sidebars and blank pages. Any element can be formatted, hidden or deleted.

Rated 5 out of 5 stars (305)
115,849 users

Firebug Featured

Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page...

Rated 5 out of 5 stars (1,835)
2,017,483 users