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Free Memory Button

Free unused memory that Firefox is currently using.

Rated 3 out of 5 stars (8)
17 users

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Quicker Filer Requires Restart

Quicker Filer helps you file your messages into folders using keyboard shortcuts and quick search method. Navigate through folders by typing the start of a folder name and the Quicker Filer dialog will show you all folders that matches as you type.

Rated 4 out of 5 stars (46)
20 users

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Restart application Requires Restart

Restart the application with one click (or Ctrl Shift Z)

Rated 4 out of 5 stars (15)
26 users

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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)
14 users

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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

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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

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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)
46 users

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RedirectFilter Requires Restart

Redirect action in the filters.

Rated 4 out of 5 stars (14)
35 users

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BlunderDelay Requires Restart

Thunderbird Extension: AutoSend Unsent Messages. Flushes entire outbox at regular intervals.

Rated 4 out of 5 stars (17)
6 users

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ThunderKeep Requires Restart

Google Keep for Thunderbird

Rated 4 out of 5 stars (9)
3 users

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SmtpSelect Requires Restart

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

Rated 4 out of 5 stars (36)
37 users

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WebApp Tabs

Allows you to configure a set of WebApps to open easily as tabs within Thunderbird trying to give them all the functionality that you'd find in Firefox.

Rated 5 out of 5 stars (19)
15 users

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Send and File Requires Restart

Allows to file outgoing messages in folder you prefer

Rated 5 out of 5 stars (20)
7 users

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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

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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

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Find Buttons

Adds buttons to open and manage the find bar.

Rated 3 out of 5 stars (2)
0 users

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Play drums! Requires Restart

Just… play drums with your keyboard!

Rated 4 out of 5 stars (20)
0 users

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3e Calendar Requires Restart

Adds support for 3e calendars

Rated 1 out of 5 stars (1)
1 user

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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)
53 users

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Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
349 users

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