Top-Rated Extensions

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Add Search Engines for SeaMonkey

Add missing search-engine detection to SeaMonkey

Rated 4 out of 5 stars (2)
39 users

ZoneMinder Client

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)
642 users

PreviousPage

Shows previous page on the left side

Rated 4 out of 5 stars (2)
14 users

Hash Password Generator

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

Rated 3 out of 5 stars (4)
299 users

YouTube Videos Download in one click

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)
2,154 users

TotalSpoof No Restart

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

Rated 3 out of 5 stars (3)
861 users

Display mailing list header

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)
441 users

Amazing Media Browser

A Multimedia Download Tool

Rated 3 out of 5 stars (21)
282 users

Hyperactive No Restart

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

Rated 4 out of 5 stars (1)
27 users

Gfire WebGame Detection Plugin

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

Rated 4 out of 5 stars (1)
210 users

Subasa Tamil to Sinhala Transliteration

Tamil To Sinhalese Transliteration provide by Subasa Language Service

Rated 4 out of 5 stars (1)
129 users

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Rated 4 out of 5 stars (1)
14 users

EzStylist

Allows including CSS when composing e-mails.

Rated 4 out of 5 stars (1)
3 users

AutoSave Plus for ScrapBook Plus / XSidebar

AutoSave is an Add-On to the firefox extension ScrapBook Plus by haselnuss and ScrapBook with XSidebar for SeaMonkey. This is a modified version of the original Add-On. Uninstall the original AutoSave before you use this extension.

Rated 4 out of 5 stars (1)
136 users

MailNews Sync

New mailnews sync engine for Seamonkey and Thunderbird. Requires Firefox Sync extension.

Rated 4 out of 5 stars (1)
1 user

Indian Language Transliterator

Indian Language Transliterator (developed at IIIT Hyderabad, India) is a Mozilla Thunderbird Add-on, developed to enable Thunderbird users to compose and send messages in 10 Regional Indian Languages, using their regular QWERTY keyboard!!!

Rated 4 out of 5 stars (1)
54 users

Youtube Best Video Downloader 2 - MP3 MP4 M4A AAC No Restart

Direct YouTube downloads MP3 M4A AAC and HD MP4, FLV, 3GP. With just one mouse click! With the click off an mouse button! Super fast downloads right from the Youtube video page you are viewing.

Rated 2 out of 5 stars (39)
127,938 users

Web Cache View Plus Proxy

Displays a web cache and/or web proxy view of a web page. You can call it from menu of tab, page context, link context and maybe while page loading.

Rated 3 out of 5 stars (5)
1,714 users

QFO - Quick Fuck Off

This extension serves the purpose of providing instant access to the FOAAS web service. FOAAS (Fuck Off As A Service) provides a modern, RESTful, scalable solution to the common problem of telling people to fuck off.

Rated 3 out of 5 stars (3)
62 users

ALLYouTubeDownloader

ALLYouTubeDownloader extention (FLV/MP4/WebM; HD/HQ). Windows only. Works only with ALL YouTube Downloader 2.3 application or higher (versions 2.2 and lower doesn't work anymore).
Homepage: http://www.allplayer.org/youtube-to-allplayer

Rated 3 out of 5 stars (8)
33,099 users