Downloading and File Management

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OpenDownload² Requires Restart

OpenDownload² extends the "Save" dialog by a "Run" button to open the file directly.

Rated 5 out of 5 stars (147)
31,216 users

LookOut (fix version) Requires Restart

LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey

Rated 4 out of 5 stars (11)
25,209 users

MR Tech Toolkit Requires Restart

(Formerly Local Install) The primary goal of this extension is to provide the tools needed to install and manage extensions and themes locally and tons of other features.

Note: With Toolkit 6.0 Auto Archiving is fully working in Firefox 2.0 and temp...

Rated 4 out of 5 stars (143)
23,151 users

Zindus Requires Restart

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

Rated 4 out of 5 stars (207)
21,627 users

Complete YouTube Saver Requires Restart

Download YouTube videos in various formats including 1080p, 4K etc (DASH formats). Convert audio track from videos to MP3 or WAV, or save audio in native format (Ogg, AAC/M4A, MP3, OPUS). Save YouTube page, video, comments and subtitles to one folder

Rated 4 out of 5 stars (133)
19,993 users

ALLYouTubeDownloader Requires Restart

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)
19,804 users

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

Rated 5 out of 5 stars (17)
19,118 users

quickFilters Requires Restart

Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.

By popular demand, supports SORTING filters alphabetically.

Rated 5 out of 5 stars (28)
13,200 users

Redirect Bypasser

Avoid redirects and has direct access to the sites you want to visit.

Rated 4 out of 5 stars (38)
10,649 users

XDM Helper Requires Restart

Xtreme Download Manager integration module to take over downloads and streaming videos from Firefox

Not yet rated
8,854 users

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.*.

Rated 4 out of 5 stars (5)
6,471 users

Cookie Importer Requires Restart

Imports cookies from a textfile.
Reads Netscape standard cookies.txt files as exported by IE and others.
Very useful in combination with the Cookie Exporter add-on.

Rated 5 out of 5 stars (3)
6,300 users

Silent Block

Minimum and fast URL blocker.

Rated 5 out of 5 stars (22)
6,098 users

Irvine ContextMenu Requires Restart

Downloads links and images with Irvine.

Rated 5 out of 5 stars (25)
5,277 users

Open With Adobe Illustrator

Open With Adobe Illustrator is a new companion for web designers, graphic designers and in general whom like to use Illustrator.

Rated 3 out of 5 stars (1)
5,231 users

YouTube Downloader and Converter Requires Restart

Easy to Download YouTube Videos in FLV and MP4 and Convert to MP3,AVI etc.

Rated 4 out of 5 stars (3)
5,060 users

Cookie Exporter Requires Restart

Exports all cookies in IE manner.
Makes a Netscape standard cookies.txt file.
Very useful for WGET --load-cookies option.

Rated 5 out of 5 stars (14)
3,573 users

Google Keep Notes

Google Keep Notes brings Google Keep right into your Firefox Sidebar.

Rated 4 out of 5 stars (7)
3,312 users

P7MON Requires Restart

Abilita la gestione alternativa degli allegati P7M

Not yet rated
3,275 users

cacaoweb Requires Restart

Watch videos without limit

Rated 1 out of 5 stars (1)
2,597 users