Up & Coming Extensions



Makes Flash Movies/Games Resizable, and other enhancements.

Rated 4 out of 5 stars (21)
23,762 users

Date Picker/Calendar

Quick popup allowing you to view a calendar or pick a date. ...

Rated 5 out of 5 stars (61)
3,465 users

Power Twitter

Makes Twitter Better!

Rated 4 out of 5 stars (164)
7,380 users


The cure for tabitis

If you keep tons of tabs open because you want to continue reading them later, Taboo is for you. Taboo lets you save a page for later (taking a screenshot, and using the Session Saver code to remember scroll location and form f...

Rated 4 out of 5 stars (179)
2,309 users

YouTube to MP3

Adds links to convert and download Youtube, MyVideo, Clipfish, Sevenload, Dailymotion, MySpace videos as MP3 files. Visit our site: http://www.video2mp3.net for more information

Rated 3 out of 5 stars (284)
282,596 users


Updated fix: Please see the developer comments section for a download link.

Firefox lets you tag your bookmarks, but it doesn't give you a great way to browse your bookmarks by their tags. TagSieve tries to.

Rated 4 out of 5 stars (95)
1,713 users

Peers - Instant Search

Instant Search for Firefox. Preview Google and Yahoo search results and suggestions in your Locationbar and Searchbar.

Rated 4 out of 5 stars (71)
1,096 users


GoogleSharing helps prevent Google from tracking your searches and web activity.

Keep your personal info private on the web with new & powerful privacy tool, MaskMe.

Rated 4 out of 5 stars (114)
16,850 users

URL Tooltip

Display URL in hyperlink tooltips.

Rated 5 out of 5 stars (49)
7,702 users

Navigational Sounds

A simple extension that plays the Windows Internet Explorer start and end navigation sounds, popup blocked and information bar sounds, feed and search provider discovered sounds, and download completed sound.

Rated 4 out of 5 stars (72)
11,229 users


Suppression de la limitation des 5 Heures sur Deezer !

Rated 5 out of 5 stars (2)
1,773 users

Official My JDownloader AddOn No Restart

Integrate 'My JDownloader' into your Firefox browser

Rated 3 out of 5 stars (6)
8,164 users

Remember Certificate Exception

Auto complete Firefox3 SSL certificate exception override on exceptionDialog.
RCE extension is a robot which can auto-click buttons on netError:badcert page: 'Add Exception', 'Get Certificate' and 'Confirm Security Exception'.

Rated 4 out of 5 stars (22)
1,020 users

Russ Key

Allows typing in phonetic Russian and transforming Russian translit into Cyrillic...

Rated 4 out of 5 stars (26)
1,932 users


Firebug extension to validate HTML.

Rated 3 out of 5 stars (8)
4,487 users

ScreenShot on Fail (Selenium IDE)

A plugin for Selenium-IDE to automatically take a screen-shot when a command fails while running the test suite

Rated 4 out of 5 stars (2)
6,579 users


Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement

Rated 4 out of 5 stars (15)
1,823 users

Google Search by Image

Adds Google Search by Image context menu item for images.

Rated 4 out of 5 stars (28)
31,721 users


An alternative to Instapaper official bookmarklet.

Rated 4 out of 5 stars (10)
1,204 users

Status-bar Scientific Calculator

A tiny expandable calculator at the status bar for quick calculations

Rated 4 out of 5 stars (97)
4,455 users