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Mail Redirect Requires Restart Featured

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (124)
38,893 users
Updated May 17, 2017

Nightly Tester Tools Requires Restart

Useful tools for the nightly tester.

Rated 4 out of 5 stars (195)
22,684 users
Updated May 16, 2017

Auto Compress File Requires Restart

Compressor for attachment files. All platforms are supported (Windows, Linux and Macintosh).

Rated 5 out of 5 stars (19)
5,738 users
Updated May 16, 2017

ThunderKeepPlus

Google Keep for Thunderbird

Rated 5 out of 5 stars (6)
1,651 users
Updated May 10, 2017

Auto Resize Image Requires Restart

Resizer for inline and attachment images (JPEG, PNG, BMP and GIF image formats).
All platforms are supported (Windows, Linux and Macintosh).

Rated 4 out of 5 stars (24)
16,337 users
Updated May 8, 2017

Classic Toolbar Buttons

'Classic Toolbar Buttons' add-on restores old toolbar button ui (known from Fx 4-7s small view, Fx 4-12s large view & Tb 5-14) for current Firefox, Thunderbird and Seamonkey versions.

Beta builds on versions page!

Rated 5 out of 5 stars (132)
37,149 users
Updated April 28, 2017

AutoProxy-ng Requires Restart

This is a fork of AutoProxy, which can run the latest version of Firefox.

Rated 4 out of 5 stars (27)
4,554 users
Updated April 27, 2017

Thunderbird Integration for JIRA Requires Restart

This is a plugin for Thunderbird 3.3+ which is able to create Atlassian Jira issues out of e-mails or add the content of an e-mail as a comment on an Jira issue.

Rated 3 out of 5 stars (13)
476 users
Updated April 26, 2017

Provider for Google Calendar Requires Restart

Allows bidirectional access to Google Calendar

Rated 4 out of 5 stars (922)
346,879 users
Updated April 26, 2017

Addons Recent Updates Requires Restart

Show more addons recent updates

Rated 5 out of 5 stars (10)
1,542 users
Updated April 24, 2017

InfoLister Requires Restart

Lists installed add-ons (extensions, themes, plugins). Mozilla does not allow me to publish the version compatible with Firefox 48+, see http://forums.mozillazine.org/viewtopic.php?f=48&t=2084957&p=14715558#p14715558 for details.

Rated 4 out of 5 stars (34)
1,028 users
Updated April 23, 2017

adaware ad block

By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.

Rated 4 out of 5 stars (43)
85,216 users
Updated April 17, 2017

UxU - UnitTest.XUL Requires Restart

This is a testing tool for addon developers.

Rated 3 out of 5 stars (5)
6 users
Updated April 13, 2017

Element Hiding Helper for Adblock Plus

Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.

Rated 5 out of 5 stars (431)
483,488 users
Updated April 12, 2017

AdSidebar

Live in harmony with ads.

AdSidebar is an alternative to traditional ad blocker extensions that benefits both the user and content creators. Ads are displayed in a sidebar on the right side of the screen.

Not yet rated
23 users
Updated April 11, 2017

Hütte Nippon for Thunderbird Requires Restart

Display weather report for a week of Japan.

Not yet rated
29 users
Updated April 9, 2017

MyAdFilter

With MyAdFilter, free content creators propose you only one ad. Apart from those, as your usual ad-blocker, MyAdFilter disables all ads.

Not yet rated
47 users
Updated March 30, 2017

The Adblocker Project

A powerful ad blocker that blocks ALL ads but ads from publishers who shares revenues with targets YOU choose.

Rated 5 out of 5 stars (3)
407 users
Updated March 17, 2017

Restart

"Restart" menu and button, with configurable shortcut key.

Rated 5 out of 5 stars (74)
28,507 users
Updated March 9, 2017

Profile Folder Button

Adds profile folder/directory button.

Rated 4 out of 5 stars (2)
1,243 users
Updated March 9, 2017