Top-Rated Extensions


CSHelper Requires Restart

This extension packages versions of the CamStudio recorder application and the XVID Codec. It is primarily intended to be used with the screen capture feature of the Video DownloadHelper add-on, when on Windows.

Rated 3 out of 5 stars (16)
21,846 users

Youtube Best Video Downloader 2 - MP3 MP4 M4A AAC

Now with 1080p Full-HD Support!

Download every YouTube video you want and you can download them as Full-HD MP4, FLV, 3GP, MP3, M4A and AAC formats. Easy & Fast!

Rated 3 out of 5 stars (50)
114,281 users

Whois Lookup & Hosting & DNS & Site Flags Firefox Requires Restart

IP Whois Lookup & Website Reviews & Rating. Display country flag indicating website location. Alexa and Norton Antivirus Site Adviser. Supported: GoDaddy, NetworkSolutions, Dotster, 1and1, NameCheap, Register, Yahoo, 123-Reg, FatCow, Enom, FastHosts.

Rated 3 out of 5 stars (9)
5,864 users


Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.

Rated 3 out of 5 stars (3)
167 users


Set most common Firefox user-agent and window.navigator values.

Rated 3 out of 5 stars (3)
767 users

Clear Cache and Data

Clears the browser cache and other selected storage.

Rated 3 out of 5 stars (3)
3,382 users

PreviousPage Requires Restart

Shows previous page in the sidebar.

Rated 4 out of 5 stars (2)
7 users

ZoneMinder Client Requires Restart

ZoneMinder Client is a Firefox Extension that provides toolbar buttons and other features to help you when connecting to your ZoneMinder Server.

Rated 4 out of 5 stars (2)
599 users

RequestPolicy v0.5 Legacy Requires Restart

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 3 out of 5 stars (5)
1,511 users

Image Zoom (ugly fixes) Requires Restart

A lazy fixing of Image Zoom

Rated 3 out of 5 stars (5)
553 users

Hash Password Generator Requires Restart

Generates different passwords for each website using a choice of multiple algorithms.

Rated 3 out of 5 stars (4)
246 users

YouTube Videos Download in one click Requires Restart

Download YouTube videos by clicking a button underneath videos in YouTube. Save YouTube videos and songs in 1080p (HD) MP4 or FLV format.

Rated 3 out of 5 stars (19)
1,614 users

Add Search Engines for SeaMonkey Requires Restart

Add missing search-engine detection to SeaMonkey

Rated 4 out of 5 stars (2)
27 users

Profile Buttons

A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.

Rated 3 out of 5 stars (4)
1,226 users

Display mailing list header Requires Restart

This extension implements RFC 2369 for Thunderbird: Special mailing list header fields in the mail are parsed, and the links are displayed in the extended header view. You can click them to simply go to the archive, request help or unsubscribe.

Rated 3 out of 5 stars (6)
353 users

Amazing Media Browser Requires Restart

A Multimedia Download Tool

Rated 3 out of 5 stars (21)
216 users


Scans hyperlinks in composed messages and alerts if one of the hyperlinks is broken.

Rated 4 out of 5 stars (1)
26 users

Gfire WebGame Detection Plugin Requires Restart

This extension tells Xfire and Gfire about the webgame you currently play.

Rated 4 out of 5 stars (1)
159 users

Subasa Tamil to Sinhala Transliteration Requires Restart

Tamil To Sinhalese Transliteration provide by Subasa Language Service

Rated 4 out of 5 stars (1)
94 users

supprimé Requires Restart


Rated 4 out of 5 stars (1)
9 users