Search

Large Fonts Requires Restart

This add-on enables you to change the font size of the plain text editor of Thunderbird.

Rated 3 out of 5 stars (2)
1 user

Download Now

NirvanaHQ Requires Restart

NirvanaHQ for Thunderbird

Rated 5 out of 5 stars (1)
0 users

Download Now

Rikaichan Japanese-Russian Dictionary File Requires Restart

A dictionary file for Rikaichan.

Not yet rated
1 user

Download Now

Thin Tabs

Extremely thin tabs optimized for the squared variants of Classic Theme Restorer.

Please see description for updates!

Rated 4 out of 5 stars (14)
3 users

Download Now

Add-on Preferences Button

Displays a menu that allows you to open the option/preference window for any add-on that has one.

Rated 5 out of 5 stars (3)
5 users

Download Now

Find Buttons

Adds buttons to open and manage the find bar.

Rated 3 out of 5 stars (2)
0 users

Download Now

Play drums! Requires Restart

Just… play drums with your keyboard!

Rated 4 out of 5 stars (20)
0 users

Download Now

Insert Link from Local File Requires Restart

Inserts links from local files via drag and drop on the composition window.

Rated 3 out of 5 stars (3)
18 users

Download Now

3e Calendar Requires Restart

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
2 users

Download Now

Clean Subject Requires Restart

"Clean Subject" cleans the subject from multiple occurrences of subject prefixes such as ("Re: Re-2: Re:") and postfixes that are inserted by other clients. Words like "[SPAM]" can be cleaned as well. These prefixes can be defined in the preferences.

Rated 4 out of 5 stars (47)
41 users

Download Now

Stacked Inspector Requires Restart

Switch DOM Inspector to an over/under vertical layout instead of the usual side-by-side panel layout.

Rated 5 out of 5 stars (10)
0 users

Download Now

Montezooma Requires Restart

Montezooma is a Thunderbird Addon that adds zooming functionality to windows.

Rated 4 out of 5 stars (6)
2 users

Download Now

Highlight External Addresses Requires Restart

This extension helps to warn the user when composing a message to a mixed group of people both in and out of the sender's organization. External addresses are highlighted in orange as a reminder.

Rated 4 out of 5 stars (2)
6 users

Download Now

New Plugin Disabler

Deactivates new plugins.

Rated 5 out of 5 stars (4)
0 users

Download Now

Hindi Pop up Requires Restart

After installing this extension, just hover the mouse on top of an English word and a pop-up will appear with suggestions of possible hindi equivalents.

Rated 5 out of 5 stars (3)
0 users

Download Now

Moji Requires Restart

An integrated sidebar-dictionary for Japanese and Chinese including kanji dictionary.

Rated 4 out of 5 stars (9)
2 users

Download Now

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
236 users

Download Now

Classicish Add-on Manager Requires Restart

A restyling of the Add-on Manager to a more native appearance.

Rated 4 out of 5 stars (17)
8 users

Download Now

Gitter Requires Restart

Assists to setup a chat account for gitter.im
Where developers come to talk.

Rated 3 out of 5 stars (1)
1 user

Download Now

Simple Steganography Requires Restart

Hide messages in PNG-32 images, extract them via context menu. The text is embedded invisibly by a "Least Significant Bit" algorithm.

You can also encode very short messages by re-sorting text lists and extract them via context menu.

Rated 5 out of 5 stars (1)
0 users

Download Now