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Birthday Calendar

Adds calendars containing the birthdays from your address books.

Rated 4 out of 5 stars (26)
4,886 users

RedThunderMineBird Plus

Provides ability to create issues on Redmine from the context menu or the button in the message header area.

Rated 5 out of 5 stars (2)
199 users

Estonian (et) Language Pack

Estonian (et) Language Pack

Not yet rated
15,038 users

Persian (fa) Language Pack

Persian (fa) Language Pack

Not yet rated
601 users

Georgian (ka) Language Pack

Georgian (ka) Language Pack

Not yet rated
12,874 users

DeepDark for Thunderbird Requires Restart

Dark mode for Thunderbird UI

Rated 5 out of 5 stars (44)
83 users

POPFile Jump

POPFileのリンク(x-popfile-linkヘッダーのURL)を開く拡張機能です。PopFileの振り分け機能の学習を直すときに便利です。

インストールするとツールバーにPOPFile Jumpのボタンが表示されるので、メールを選択してボタンを押してください。

POPFile:
http://getpopfile.org/docs/jp

Not yet rated
24 users

BrowseInTab

BrowseInTab lets you open and browse any link in a Thunderbird content tab. Links are followed within the tab and back/forward navigation is supported. Also with enhanced Zoom customization and a url bar.

Rated 4 out of 5 stars (13)
81 users

M-Hub Lite

Add Microsoft Office 365 Tabs to Thunderbird! Services supported by M-Hub Lite: Calendar, People, OneDrive, Word, Excel, PowerPoint, & Bing. Need business or enterprise support? Get M-Hub Pro: https://www.schiffner.com/software/m-hub-pro

Rated 3 out of 5 stars (5)
305 users

Minimize on Close

Causes Thunderbird's main window to minimize instead of closing. You can still close Thunderbird through the menu.

Rated 4 out of 5 stars (96)
41,330 users

Empty Folder

Adds a context option to mail folders for moving all included messages to trash.

Rated 4 out of 5 stars (14)
288 users

Charset Menu

Restores the charset menu removed in Thunderbird 91 and fixes an issue in Thunderbird 78.

Rated 4 out of 5 stars (9)
5,404 users

Addon-Info/Sync/Compatibility

* List addons: max version on ATN, version installed, compatibility with TB 91, description
* Show addon compatibility on addon button
* Print, copy to clipboard or email
* Indicate missing addons upon receiving the email from another TB ('sync')

Not yet rated
155 users

tbkeys-lite

Custom Thunderbird keybindings

This add-on is a follow on to Keyconfig which is no longer supported.

It is aimed at power users. Please look at the GitHub site before leaving a one star review about documentation or usability.

Rated 5 out of 5 stars (63)
4,758 users

Copy Patch

Copy email content to clipboard for application as patch. Applies some filters, e.g. Outlook Safe Link unmangling, to ensure patch cleanness.

Rated 5 out of 5 stars (2)
86 users

CPS Test Pro

Test your CPS (clicks per second) and practice different clicking techniques.

Not yet rated
2 users

ThirdStats

Beautifully visualized statistics for your Thunderbird Email Accounts

Rated 5 out of 5 stars (30)
4,054 users

Unicodify – Text transformer

Easily and quickly transform text to “Unicode fonts” and change the casing.

Rated 5 out of 5 stars (3)
466 users

Auto Mark As Read

Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal

Rated 5 out of 5 stars (4)
286 users

Mark Read on Reply

Mark messages as read when you reply to them.

Rated 5 out of 5 stars (2)
168 users