Miscellaneous

Subscribe

Update Channel Selector

Allows you to change the application update channel.

Changing only the channel with Gecko 12 became insufficient because it's "*.mar" related security landings.

Rated 3 out of 5 stars (10)
7,123 users

Bird Import

The extension allows to import e-mail messages from The Bat! mail client into Thunderbird.

Rated 3 out of 5 stars (8)
1,240 users

MinimizeToTray Plus

Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.

Minimize applications to the system tray.

Rated 4 out of 5 stars (192)
19,344 users

RedirectFilter

Redirect action in the filters.

Rated 4 out of 5 stars (14)
2,501 users

MinimizeToTray revived

Minimizes windows into the system tray.

Rated 5 out of 5 stars (293)
252,300 users

Display Quota

This extension will display the current status of your IMAP quota in thunderbird's statusbar and will warn you when you reach a configurable limit...

Rated 4 out of 5 stars (28)
31,381 users

Restart

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

Rated 5 out of 5 stars (32)
12,029 users

Link Properties Plus

Provides extended link properties: size of linked file, last modified time, etc.

Rated 5 out of 5 stars (13)
1,751 users

Just Restart!

Restart application with Ctrl+Shift+Z.

Rated 5 out of 5 stars (3)
1,083 users

ProfileSwitcher

It adds some options to launch easily other profiles and the Profile Manager.

Rated 5 out of 5 stars (57)
39,049 users

ImportExportTools

Adds some tools to import and export folders and messages

Rated 4 out of 5 stars (119)
310,503 users

Select Inbox

Automatically select the Inbox folder at startup, even if there is no account set to automatically check for new emails.

Important: the author will provide no other update for this add-on.

Rated 4 out of 5 stars (11)
3,250 users

Xpunge

Empties the Trash and Junk folders, and compacts folders in multiple Thunderbird accounts.

Rated 4 out of 5 stars (34)
13,596 users

IMEStatus

Show IME status by input/textarea/textbox background color.

Rated 4 out of 5 stars (3)
1,297 users

Signature Switch Featured

Switch the signature on/off or choose a new one from your predefined set...

Rated 4 out of 5 stars (159)
87,576 users

PrintingTools

Adds some options to print messages and addressbooks

Rated 4 out of 5 stars (21)
26,057 users

Muttator

Make Thunderbird behave like Vim

Rated 5 out of 5 stars (12)
1,290 users

Return Receipt Toolbar Button

Allow you to add a Return Receipt button to mail compose window toolbar.

Rated 5 out of 5 stars (9)
5,809 users

SmtpSwitch

SmtpSwitch allows to choose the smtp server when clicking on the 'Send' button.

Rated 4 out of 5 stars (21)
2,123 users

Allow Empty Subject

Allows Thunderbird to send message without a subject.

Visit my Allow Empty Subject site for recent versions and news.

Rated 4 out of 5 stars (20)
1,036 users