Add-ons
Downloading and File Management
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XDM Helper
Requires Restart
Xtreme Download Manager integration module to take over downloads and streaming videos from Firefox
DownloadStudio Firefox Integration
Requires Restart
Firefox Integration for DownloadStudio
Youtube Downloader Gold
This extension to download audio and video from popular video hosting YouTube. To download the available formats mp4, webm, mp4a, mp3.
Torrent Tornado
Requires Restart
A Torrent Client for Firefox and SeaMonkey, runs everywhere, created in pure JavaScript without binary software!
YouTube Downloader and Converter
Requires Restart
Easy to Download YouTube Videos in FLV and MP4 and Convert to MP3,AVI etc.
Facebook Chat Download
Create a simple html page containing the whole chat. The page will contain only the chat section. All other page elements will be removed. Once the addons ends loading the chat you can save the clean page from your browser.
Awesome Auto Archive
Automatically do Archive/Copy/Delete/Move actions based on user defined rules
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.
P7MON
Requires Restart
Abilita la gestione alternativa degli allegati P7M
LookOut+
Requires Restart
LookOut is a plugin which allows to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
This version is a fix for Seamonkey 2.*.
mozCleaner
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
iMEGA
This add-on is intended to ease the life of the regular MEGA user.
Please note this extension is NOT the official from Mega, for the real one please go to: https://mega.nz/#firefox
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
yangben dictionnary
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.
Redirect Bypasser
Avoid redirects and has direct access to the sites you want to visit.
User Agent Changer
Requires Restart
Adds a menu and a toolbar button to change the user agent of a browser.
Forwarding to the available information resources
Requires Restart
The system is designed to redirect from alias with obsolete and invalid network and a local address information resources on the act for which the resource is available. The system can perform advanced search resources.
To create your own collections, you must have a Mozilla Add-ons account.
