Extensões mais populares

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Speed Dial Reinício necessário

Direct access to your most visited websites

Avaliado com 4 de 5 estrelas (1 245)
219 882 utilizadores

User Agent Switcher Reinício necessário

The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.

Avaliado com 4 de 5 estrelas (277)
216 567 utilizadores

NetVideoHunter Reinício necessário

This add-on is a downloader that lets you easily download videos from sites like Youtube, Facebook, Metacafe, Dailymotion, Break, VKontakte and music for example from SoundCloud, Grooveshark and from many other sites...

Avaliado com 4 de 5 estrelas (413)
183 147 utilizadores

FoxyProxy Standard Reinício necessário

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.

Avaliado com 4 de 5 estrelas (459)
181 753 utilizadores

Xmarks Sync Reinício necessário

NOTE: Xmarks lives! Learn more at http://blog.xmarks.com . Xmarks is the #1 bookmarking add-on. Keep your bookmarks, passwords and open tabs backed up and synchronized across computers and browsers.

Avaliado com 4 de 5 estrelas (2 545)
179 081 utilizadores

YouTube Flash Video Player

YouTube Flash Video Player is a powerful tool that will let you choose Flash video player as default YouTube video player.

Avaliado com 5 de 5 estrelas (81)
177 327 utilizadores

LookOut Reinício necessário

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).

Avaliado com 4 de 5 estrelas (155)
176 335 utilizadores

Download Status Bar

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.

Avaliado com 5 de 5 estrelas (281)
174 679 utilizadores

Personas Plus

Personas (now known as lightweight themes) are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite themes.

Avaliado com 3 de 5 estrelas (858)
167 605 utilizadores

Lucifox Reinício necessário

Read EPUB e-books and browse OPDS catalogs.

Avaliado com 4 de 5 estrelas (22)
145 991 utilizadores

SQLite Manager Reinício necessário

Manage any SQLite database on your computer.

Avaliado com 4 de 5 estrelas (83)
143 155 utilizadores

Add-ons Manager Context Menu Reinício necessário

Add more items to Add-ons Manager context menu.

Avaliado com 5 de 5 estrelas (41)
133 841 utilizadores

Enigmail Reinício necessário Em destaque

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Avaliado com 4 de 5 estrelas (196)
132 162 utilizadores

MinimizeToTray revived Reinício necessário

Minimizes windows into the system tray.

Avaliado com 4 de 5 estrelas (336)
126 728 utilizadores

Menu Wizard Reinício necessário

Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey

Avaliado com 5 de 5 estrelas (203)
109 629 utilizadores

Mozilla Archive Format, with MHT and Faithful Save Reinício necessário

— 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!

Avaliado com 4 de 5 estrelas (262)
102 052 utilizadores

VKontakte.ru Downloader (music/videos/photos @ VK) Reinício necessário

Download music, videos and photos from VK.com / vkontakte.ru. One-click download, natural filenames, displaying file size and bitrate for music, downloading HD video, downloading HQ photos. No spam, no usage of your account, no spyware.

Avaliado com 4 de 5 estrelas (498)
101 860 utilizadores

Screengrab (fix version) Reinício necessário

Screengrab! saves webpages as images.
0.99 released!
New features: upload to internet

Avaliado com 5 de 5 estrelas (265)
96 390 utilizadores

µBlock

The most efficient blocker for Firefox.

No ads, no tracking, and insanely faster page loads.

Avaliado com 4 de 5 estrelas (239)
95 310 utilizadores

Image Zoom Reinício necessário

Adds zoom and rotation functionality for images...

Avaliado com 4 de 5 estrelas (342)
95 296 utilizadores