Miscellaneous

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IMAP Quota (Free Space) Requires Restart

This Thunderbird addon lets you customize the IMAP quota statusbar panel.

Rated 4 out of 5 stars (5)
4,239 users

List Addons in Windows' Programs

List addons in Windows' "Add or Remove Programs".

Rated 5 out of 5 stars (1)
2,415 users

DOM Inspector Requires Restart

DOM Inspector is a tool that can be used to inspect and edit the live DOM of any web document or XUL application. The DOM can be navigated using a two-paned window displaying a variety of different views on the document and all nodes within.

Rated 5 out of 5 stars (77)
27,921 users

Quicktext Requires Restart

Quicktext is an extension for Thunderbird that lets you create templates that can be easily inserted into your own emails.

Rated 4 out of 5 stars (347)
100,767 users

ThunderKeepPlus Requires Restart

Google Keep for Thunderbird

Rated 5 out of 5 stars (15)
3,884 users

Rise of the Tools Requires Restart

Moves the toolbar back above the tabbar.

Rated 5 out of 5 stars (57)
2,669 users

LaTeX It! Requires Restart

This addons allows you to write LaTeX expressions in your emails such as $x^2$ or $$\sum_{x=0}\infty$$ and have them all replaced by a PNG image with the corresponding formula inside.

Rated 4 out of 5 stars (34)
1,761 users

Add Signature Requires Restart

Simply add your signature manually (right mouse click) to your emails

Rated 3 out of 5 stars (44)
5,933 users

Xpunge Requires Restart

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

Rated 4 out of 5 stars (39)
11,615 users

URL Link Requires Restart

URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.

Rated 4 out of 5 stars (1)
2,534 users

Open With Requires Restart

Open With can open your web links in any browser installed on your computer.

Rated 5 out of 5 stars (3)
1,601 users

LightningButton Requires Restart

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

Rated 4 out of 5 stars (18)
15,530 users

ConQuery Requires Restart

Context searching for everyone and URL manipulation tool for advanced users...

Rated 5 out of 5 stars (36)
0 users

DND Flavor Inspector Requires Restart

View drag and drop flavors

Not yet rated
0 users

Pydio for Filelink Requires Restart

Adds support to use Mozilla Filelink with an Pydio account.

Rated 5 out of 5 stars (9)
50 users

中止ボタンがしいたけに見えて困る Requires Restart

Huh, you said the stop button looks like shiitake? No way, you must be tired.

Rated 5 out of 5 stars (21)
0 users

ClassicFox Requires Restart

ClassicFox fixes problems with the appearance of the default theme in Windows Classic.

Rated 5 out of 5 stars (5)
0 users

Follow Up Requires Restart

This add-on provides a follow-up email feature for Thunderbird.

Rated 3 out of 5 stars (22)
115 users

NetscapeCommunicator 4.x Account Settings Migrator Requires Restart

Provies ability to migrates account settings and preferences from NC4.x profiles.

Not yet rated
3 users

EditEmailSubject-hotfix Requires Restart

Hotfix for EditEmailSubject version 2.1.0 by jisse44
https://addons.mozilla.org/de/thunderbird/addon/edit-email-subject/

- fixed: does not overwrite Message-ID and references with undefined

Not yet rated
5 users