Featured Extensions

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Wired-Marker Featured

Wired-Marker(http://www.wired-marker.org/en/) is a permanent (indelible) highlighter that you use on Web pages. The highlighter, which comes in various colors and styles, is a kind of electronic bookmark that serves as a guide when you revisit a Web ...

Rated 4 out of 5 stars (143)
13,677 users

Firebug No Restart 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 (1,829)
2,045,421 users

Lightweight Themes Manager No Restart Featured

Manage your installed personas (lightweight themes).

Rated 5 out of 5 stars (9)
12,602 users

VimFx No Restart Featured

Vim-style keyboard shortcuts for browsing and navigation, significantly reducing the use of the mouse.

Rated 5 out of 5 stars (153)
13,915 users

Add to Search Bar No Restart Featured

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

Rated 5 out of 5 stars (639)
76,943 users

Torrent Tornado Featured

A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!

Rated 4 out of 5 stars (79)
45,127 users

Proxy Switcher No Restart Featured

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

Rated 5 out of 5 stars (15)
41,427 users

WebRank SEO Toolbar Featured

A toolbar that gives Google Pagerank, Alexa, Compete and Quantcast Rank, pages indexed and backlinks in Google, Bing and Yahoo. Bookmark webpages at PickMeWeb.com, view similar websites at SimilarSites.com. Delicious, Digg and Tweet Count.

Rated 4 out of 5 stars (71)
15,392 users

Web Developer Featured

The Web Developer extension adds various web developer tools to the browser.

Rated 5 out of 5 stars (235)
465,920 users

Mozilla Archive Format, with MHT and Faithful Save Featured

— Open web pages saved with Internet Explorer or other browsers (MHT)
— Save many tabs, video and audio reliably, in a single ZIP file (MAFF)
— Return to the original site you saved a page from, and more!

Rated 4 out of 5 stars (310)
155,710 users

User-Agent Switcher No Restart Featured

Quickly and easily switch between popular user-agent strings.

Rated 4 out of 5 stars (28)
50,823 users

Beyond Australis No Restart Featured

Australis was the code name for the current Firefox theme, it aimed to make a great browser look awesome. Now you can go one step further and also make it feel awesome to use!

Rated 5 out of 5 stars (289)
34,877 users

Password Tags Featured

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (7)
2,869 users

Download Status Bar No Restart Featured

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Rated 5 out of 5 stars (356)
232,479 users

FireGestures Featured

A customizable mouse gestures extension which enables to execute various commands and user scripts with six types of gestures.

Rated 4 out of 5 stars (924)
353,130 users

Duplicate Tabs Closer No Restart Featured

Detects and automatically closes duplicate tabs.

Rated 4 out of 5 stars (33)
6,855 users

Web2PDF Converter Featured

Web page to PDF conversion tool

Rated 3 out of 5 stars (96)
40,818 users

Smart HTTPS No Restart Featured

Automatically changes HTTP addresses to the secure HTTPS, and if loading encounters error, reverts it back to HTTP.

Rated 4 out of 5 stars (18)
20,491 users

Reader No Restart Featured

Reader is the ultimate Reader tool for Firefox.

Rated 5 out of 5 stars (58)
33,744 users

Facebook™ Disconnect No Restart Featured

Facebook™ Disconnect is an efficient firewall to disconnect third-party websites from accessing to your Facebook.

Rated 4 out of 5 stars (6)
27,323 users