Appearance and Customization

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Send Later Button

A simple button to invoke the (already existing) send later functions.

Not yet rated
32 users
Added April 28, 2016

ansitel Click-to-Dial Thunderbird

Click-to-Dial Plugin für ansitel VoIP-Telefonanlagen zum Markieren und Wählen von Rufnummern in Mozilla Thunderbird.

Not yet rated
10 users
Added April 27, 2016

Lowercase Email Addresses in Message Headers

Shows lowercase email addresses in message headers and their tooltips.

Not yet rated
16 users
Added March 28, 2016

Sender Frequency

Adds a custom column for Sender Frequency to the thread pane

Rated 5 out of 5 stars (2)
25 users
Added March 7, 2016

Classic Pop-up Alerts No Restart

This addon returns the old view of the pop-up notifications, as in Firefox 4.0 - 43.0

Not yet rated
266 users
Added February 20, 2016

GNotifier No Restart

Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.

Rated 5 out of 5 stars (4)
11,811 users
Added February 14, 2016

Email Addresses in Message Headers

Shows email addresses in message headers, including those of contacts, and provides control over message header presentation.

Not yet rated
113 users
Added February 13, 2016

Stylish-Custom

custom additions to Stylish extension

Rated 5 out of 5 stars (2)
436 users
Added January 12, 2016

No need flash plugin on embeded youtube movies No Restart

No need flash plugin on embeded youtube movies

Rated 4 out of 5 stars (2)
7,609 users
Added January 1, 2016

Hide Badge Icon

Hides the badge for new messages of the Thunderbird app icon on Mac OSX.

Not yet rated
4 users
Added November 8, 2015

Thunderbird-DontRestoreTabs

Allows the user not to restore tabs at startup in Thundertbird

Not yet rated
50 users
Added October 18, 2015

Contact DnD

Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.

Not yet rated
12 users
Added October 6, 2015

Pic Zoom

Zoom in and out of any image on a page

Not yet rated
108 users
Added October 1, 2015

Lightning Colors Reminder

Let's show the calendar color on Lightning reminders!

Not yet rated
3,162 users
Added September 30, 2015

Disable About Something

Provides ability to disable "about:*" pages by the configuration.

Rated 5 out of 5 stars (1)
437 users
Added September 24, 2015

Squared Australis Tabs (Tb) No Restart

A small and simple extension, which replaces the curved tabs of the Australis design with squared ones, similar to Thunderbird v14 and prior.

Rated 5 out of 5 stars (1)
378 users
Added August 4, 2015

Profile Buttons No Restart

A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.

Rated 3 out of 5 stars (2)
988 users
Added July 8, 2015

Version Number in Add-ons Manager No Restart

Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 24.0 and later.
Also restores the add-on version number on Firefox/Thunderbird 40.0 and later.

Rated 5 out of 5 stars (2)
272 users
Added July 1, 2015

Add-ons Manager - Version Number No Restart

Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.

Rated 5 out of 5 stars (17)
1,270 users
Added June 27, 2015

about:config Button No Restart

Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.

Rated 5 out of 5 stars (3)
2,913 users
Added June 21, 2015