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New Bing Anywhere

New Bing isn't just for Edge anymore. Anywhere you want

Rated 2 out of 5 stars (2)
20 users

Spellchecker Ladin (Val Badia)

Spell-checking dictionary for Ladin (Val Badia).

Not yet rated
1 user

Correcteur français en orthographe rationnelle

Ce correcteur simplifie l'orthographe selon les propositions de l'association Érofa :
- Suppression des consonnes doubles inutiles : "doner"
- Simplification des mots d'origine grecque ('ph' > 'f', 'th' > 't', etc.)
- 'x' finaux remplacés par 's'

Rated 2 out of 5 stars (4)
3,143 users

eMail Address Finder

This finds all email addresses in Body, From, & CC fields.

It will then put them all into a single menu.

You can click on the menu & copy the address.

For those wrangling email addresses all day, it's a massive time saver.

Not yet rated
90 users

Mark Read on Tab Open

Mark messages as read when you open them in tabs.

Not yet rated
48 users

Tamizha Spellchecker Requires Restart

Tamil spell checker derived from the OpenOffice spell­­­­checker created by Tamizha Team

Not yet rated
2 users

Uyghur Spelling Dictionary (ئۇيغۇرچە ئىملا لۇغەت)

Uyghurche Imla Lughet ئۇيغۇرچە ئىملا لۇغەت
Enables spell checking in any text field for Uyghur Arabic Alphabet.

Not yet rated
1 user

Use BCC Instead C Requires Restart

This addon prevents you accidentally sending an email to a large number of recipients without hiding their addresses from each other by using BCC. It is for TBv68.

IT WILL NOT BE UPDATED FOR TBv78.
Try my addon 'Limit non-BCC recipients'

Rated 3 out of 5 stars (5)
209 users

Autocrypt Requires Restart

E-Mail encryption that gets out of your way. Compatible with Autocrypt and OpenPGP.

EARLY ACCESS, MAY CONTAIN BUGS!

Caution: This extension can not be used together with Enigmail. Please remove Enigmail before installing.

Rated 4 out of 5 stars (10)
4 users

Addon Compatibility Check for TB 102/TB 115/TB 128

Checks all installed add-ons for compatibility with Thunderbird 128 (or TB 102/115) and displays status information on a button in the main toolbar. This button will open a detailed overview, including links to alternatives for abandoned add-ons.

Rated 4 out of 5 stars (12)
15,467 users

Custom sync interval for Lightning Calendar Requires Restart

Allows custom synchronization intervals for remote calendars imported by Lightning Calendar (no fiddling in about:config necessary)

Rated 5 out of 5 stars (1)
70 users

BCM Bengali (Bangladesh) Spellchecker

Spellchecker for Bengali (Bangladesh) following Bangla Academy and Prothom Alo standards: See https://banglatypefoundry.com/spellchecker/

Not yet rated
6 users

Just Restart/Quick Quit_TB115! Requires Restart

Restart TB with Ctrl+Shift+Z or File->Restart.
Quick Quit all TB windows by ctrl-click on main window X
Restart on alt+click main window X

Open error console, debugger, file picker for temporary addon install at TB start (options)

Rated 4 out of 5 stars (2)
14 users

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)
19 users

marked-lightning

Extension for Lightning: Allows the use of Markdown in Task descriptions and renders them as HTML in the TaskView.

Rated 5 out of 5 stars (3)
42 users

Console messaging example

Console messaging example add-on

Not yet rated
3 users

Aranese spell checker

Aranese (Occitan) spell checker - Diccionari ortogràfic d'Aranés

Not yet rated
17 users

Telegram Web in Thunderbird

Open Telegram Web in Thunderbird

Rated 5 out of 5 stars (5)
751 users

ThunderCalc

A simple calculator for Thunderbird/Sea Monkey/Firefox, available in a pop-up window or a separate tab.

Not yet rated
13 users

OpenAI Proofreader

This extension uses OpenAI gpt-4o-mini to proofread emails when the user clicks the extension icon.

Usage requires an OpenAI API key. OpenAI does not offer a free usage tier. Proofreading a 4-5 paragraph email costs a fraction of a cent.

Not yet rated
16 users