Miscellaneous

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Bird Import

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

Rated 3 out of 5 stars (8)
1,315 users

Timeline

A Timeline calendar view

Rated 4 out of 5 stars (36)
1,324 users

Xpunge

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

Rated 4 out of 5 stars (34)
14,072 users

Copy Plain Text

Copies text without formatting...

Rated 4 out of 5 stars (196)
1,331 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)
18,896 users

Email Signature - WiseStamp

Signatures for Gmail, Google Mail, Yahoo Mail

Rated 4 out of 5 stars (300)
28,829 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)
6,011 users

LightningButton

Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.

Rated 4 out of 5 stars (13)
22,242 users

Lightning Nightly Updater (Unofficial)

Quickly get to the latest nightly build of Lightning relevant to the version of Thunderbird and the OS you're on.

Rated 4 out of 5 stars (39)
11,977 users

Sieve No Restart

This Extension implements the ManageSieve protocol for securely managing Sieve Script on a remote IMAP server...

Rated 4 out of 5 stars (24)
9,865 users

Free/Busy

Publish free/busy calendar file (*.ifb) via ftp or to a file. View other people's free/busy info in meeting organizer window. Integrate Thunderbird and Outlook calendars without Exchange server.

Rated 3 out of 5 stars (9)
1,526 users

MinimizeToTray

Minimizes Mozilla windows into the system tray. Also includes a right clickable tray icon menu to further load only the windows you want visible...

Rated 4 out of 5 stars (466)
14,164 users

Thunderbird Message Filter Import/Export

Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.

Rated 3 out of 5 stars (65)
9,386 users

MathML-fonts No Restart

Fonts for Mozilla's MathML engine.

Rated 5 out of 5 stars (2)
2,440 users

UnMHT No Restart

UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.

Rated 5 out of 5 stars (213)
83,889 users

RedirectFilter

Redirect action in the filters.

Rated 4 out of 5 stars (14)
2,460 users

Gmail Buttons

Adds message-specific buttons to Thuderbird that are consistent with the way Gmail handles Trash and Spam.

TB<16 Users - Download here.

Rated 5 out of 5 stars (6)
1,171 users

Gantt View

Gantt Chart view for Sunbird/Lightning

Rated 4 out of 5 stars (30)
6,192 users

MinimizeToTray For FF 3.5

MinimizeToTray For firefox 3.Minimizes Mozilla windows into the system tray.Note:I am going to remove this extension if the original creator make a FF 3 version!

Rated 5 out of 5 stars (121)
2,323 users

Tea Timer

A countdown with reminder to prepare a perfect tea.

Rated 4 out of 5 stars (36)
3,783 users