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DragToCompose Requires Restart

Enables dragging a file to Thunderbird for composing a new message without opening composer window first.

Rated 5 out of 5 stars (6)
13 users

Restart App Button

Restart the current application, as you might need to do after installing a new extension or theme.

Rated 5 out of 5 stars (6)
6 users

ICS Inspector Requires Restart

This extension provides many debugging options related to calendar development. This includes showing the ics data for an event or calendar, evaluating javascript on an event or calendar, and some menu options for debugging.

Rated 4 out of 5 stars (1)
5 users

tasks & mails Requires Restart

Tasks and emails management in a Thunderbird extension. tasks are stored in emails folder and it's possible to link an email to a task.
See all in one, emails and tasks (no more pain to synchronize a task manager).

Rated 4 out of 5 stars (37)
4 users

Send Filter Requires Restart

This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.

Rated 4 out of 5 stars (38)
44 users

RedirectFilter Requires Restart

Redirect action in the filters.

Rated 4 out of 5 stars (14)
35 users

SmtpSelect Requires Restart

A toolbar button providing easy access to choosing the default SMTP server in Thunderbird.

Rated 4 out of 5 stars (36)
35 users

ThunderKeep Requires Restart

Google Keep for Thunderbird

Rated 4 out of 5 stars (9)
3 users

Evolution Mirror Requires Restart

Mirrors calendars to Evolution Database Server to allow them to be viewed through the gnome clock applet

Rated 4 out of 5 stars (46)
1 user

Send and File Requires Restart

Allows to file outgoing messages in folder you prefer

Rated 5 out of 5 stars (20)
7 users

About:about Button

A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.

Rated 3 out of 5 stars (4)
2 users

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)
6 users

Find Buttons

Adds buttons to open and manage the find bar.

Rated 3 out of 5 stars (2)
0 users

Play drums! Requires Restart

Just… play drums with your keyboard!

Rated 4 out of 5 stars (20)
0 users

3e Calendar Requires Restart

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
1 user

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 (46)
51 users

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

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
320 users

Wepware - Capture and Share Live Content Requires Restart

Grab live snapshots of anything on the internet, organize your collected content into folders and share with friends through SNS.

Not yet rated
1 user

Just Restart! Requires Restart

Restart application with Ctrl+Shift+Z.

Rated 5 out of 5 stars (7)
5 users