Welcome to Thunderbird Add-ons.

Add extra features and styles to make Thunderbird your own.

Close

On the go?

Check out our Mobile Add-ons site.

Close

Top-Rated Extensions

Subscribe

DeepDark for Thunderbird Requires Restart

Dark mode for Thunderbird UI

Rated 5 out of 5 stars (44)
103 users

Download Now

Hide Local Folders for TB78++

Removes the 'Local Folders' entry from the folder pane.
(The folder itself will stay existent.)
(Based on the original work of Alex Cabal.)

Rated 5 out of 5 stars (17)
1,641 users

Download Now

Search Results Sort By Date Not Relevance Requires Restart

Makes search results sort by "date" instead of "relevance" by default.

Rated 5 out of 5 stars (30)
1,009 users

Download Now

Disable DragAndDrop (Thunderbird) Requires Restart

A Thunderbird extension which disables drag and drop in the folder pane.
This extension prevents unintended folder movement.

Rated 5 out of 5 stars (19)
68 users

Download Now

GlodaQuilla search indexing enhancements Requires Restart

Permits selective enabling and disabling of search indexing on folders or accounts - with inheritence. Also adds three columns to the Thunderbird message pane that are useful in debugging.

Rated 5 out of 5 stars (10)
12 users

Download Now

Send and File Requires Restart

Allows to file outgoing messages in folder you prefer

Rated 5 out of 5 stars (20)
9 users

Download Now

Previous Colors

Quickly choose one of the previously selected colors for a message text

Rated 5 out of 5 stars (8)
1,908 users

Download Now

Edit Email Subject

Edit Email Subject for Thunderbird

Rated 5 out of 5 stars (18)
74 users

Download Now

HTitle (discontinued) Requires Restart

Hide title bar if window is maximized.

This add-on has been discontinued!

Legacy extensions support will be dropped in Firefox 57. If you interest in CSD on Linux, please track progress on https://bugzilla.mozilla.org/show_bug.cgi?id=1283299.

Rated 5 out of 5 stars (131)
0 users

Download for Linux

Subject Manager Requires Restart

Manages subject of composed emails.

Rated 5 out of 5 stars (27)
107 users

Download Now

Get Selected Mails Requires Restart

Gets new messages for selected mail accounts.

Rated 5 out of 5 stars (12)
57 users

Download Now

Search for

Context menu on message allowing quick filtering based on email/sender or domain

Rated 5 out of 5 stars (7)
1,525 users

Download Now

QuickFolders (Tabbed Folders)

The "Swiss army knife" of folders. Turn your favorites into tabs - open folders and subfolders, move mails without scrolling around or searching. powerful + easy.

See new mail at a glance after automatic filtering - supports quickFilters addon!

Rated 5 out of 5 stars (190)
16,142 users

Download Now

Password Tags Requires Restart

Adds metadata and sortable tags to the password manager.

Rated 5 out of 5 stars (15)
10 users

Download Now

Close on Escape Too Requires Restart

Updated version of David Winter's Close Tab on Escape, ported to be compatible with Thunderbird 68 and later.

Rated 5 out of 5 stars (15)
24 users

Download Now

ResetRec Requires Restart

ResetRec allows you to reset the recipient list.

Rated 5 out of 5 stars (6)
41 users

Download Now

Force RTL

Force a LTR locale to behave as if it was a RTL locale.

Rated 5 out of 5 stars (6)
0 users

Download Now

EHTip Requires Restart

Word translation in tooltip with English⟷Croatian dictionary already incorporated.

Rated 5 out of 5 stars (64)
0 users

Download Now

Address bulk copy （アドレス一括コピー） Requires Restart

Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。
それを実現するためのアドオンです。

Rated 5 out of 5 stars (10)
658 users

Download for Windows

Download Status Bar

If you are the kind of person who likes to have total control over every aspect of your downloads, "Download Status Bar" is the add-on you are looking for.

Rated 5 out of 5 stars (437)
68 users

Download Now