Most Popular Extensions

Subscribe

YouTube Flash Player

A very lightweight add-on that allows you to watch YouTube™ videos using Flash® Player instead of the default HTML5 player. The Flash® Player will consume less material resources (CPU, RAM) if your PC doesn't easily support HTML5 videos. Try it!

Rated 5 out of 5 stars (71)
391,403 users

Evernote Web Clipper

Use the Evernote Web Clipper to save things you see on the web into your Evernote account.

Rated 2 out of 5 stars (986)
380,471 users

Speed Dial Requires Restart

Direct access to your most visited websites

Rated 4 out of 5 stars (1,291)
367,323 users

FireGestures Requires Restart 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 (963)
356,291 users

AdBlocker for YouTube™ Featured

AdBlocker for YouTube™ removes all annoying Ads from YouTube

Rated 4 out of 5 stars (33)
344,721 users

Google Translate, ImTranslator, Dictionary, TTS Requires Restart

COMPLETELY REDESIGNED TRANSLATOR FOR FIREFOX
ImTranslator translates text, words, webpages between more than 90 languages.
NEW: Inline Translator, Dictionary, access to Google Translate, Microsoft Translator. Unique on the fly localization.

Rated 4 out of 5 stars (466)
344,412 users

User Agent Switcher Requires Restart

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

Rated 4 out of 5 stars (265)
341,339 users

iCloud Bookmarks

Keep your Firefox bookmarks on Windows up to date with your Safari bookmarks on iPhone, iPad, and Mac with the iCloud Bookmarks extension for Firefox.

Rated 2 out of 5 stars (163)
335,578 users

Mozilla Firefox hotfix

This official add-on enables Firefox to provide quick fixes for selected issues.

Rated 2 out of 5 stars (9)
329,452 users

New Tab by Yahoo

This Add-on brings a fresh look to your new tab page, powered by Yahoo. It also provides default Yahoo experience for search and homepage.

Rated 2 out of 5 stars (22)
326,501 users

Easy Access Requires Restart

Allow an easy access to the system commands and other programs in your computer.

Rated 4 out of 5 stars (17)
326,035 users

Xmarks Sync Requires Restart

Xmarks is the #1 bookmarking and open tab add-on. Keep your bookmarks, and open tabs backed up and synchronized across computers and browsers. Mobile phones with Premium access. Utilize LastPass to sync passwords!

Rated 4 out of 5 stars (2,585)
316,172 users

Easy Youtube Video Downloader Express

"#1 Rated Firefox Youtube Video Downloader", Only one with 1080p Full-HD and 256kbps MP3 Direct Links. A clean, fast and simple addon for superfast and easy downloads in FLV, 3GP, MP3, MP4, 720p, 1080p qualities on Youtube pages.

Rated 4 out of 5 stars (1,004)
309,038 users

friGate Requires Restart

Открывает сайты, заблокировнные злым "админом" вашей компании, сети или провайдера. Недоступен Сайт? через прокси friGate откроет!

Rated 4 out of 5 stars (262)
307,498 users

Amazon Assistant for Firefox

This is an official Amazon extension for Firefox. Amazon Assistant helps you make better shopping decisions by showing product comparisons at thousands of retail sites. By installing you agree to the Conditions of Use at amazon.com/gp/BIT/TOU.

Rated 4 out of 5 stars (203)
306,513 users

Full Web Page Screenshots (♥♥♥♥♥) Requires Restart

FireShot makes full web page screenshots. Demo: http://bit.ly/RlBQMV

Screenshots can be quickly captured and:

― Saved as Image or PDF
― Sent to clipboard
― Printed
― Annotated *
― Uploaded *
― E-Mailed *

* OS Windows only

Rated 5 out of 5 stars (474)
305,367 users

Session Manager

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 4 out of 5 stars (496)
297,888 users

Disconnect Requires Restart

Make the web faster, more private, and more secure.

Rated 4 out of 5 stars (200)
295,303 users

YouTube High Definition Featured

YouTube High Definition is a powerful tool that will let you automatically play all YouTube videos in HD (High Definition), turn off annotations, change video player size, auto stop videos, auto mute videos, control embedded videos and much more.

Rated 5 out of 5 stars (245)
293,422 users

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.

Rated 5 out of 5 stars (51)
293,026 users