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Toggle Line Wrap
Toggle wrapping of long lines in the message composition window when writing plaintext messages. Wrapping can be controlled via a toolbar button and a keyboard shortcut.
Zivver for Thunderbird
This extension automatically detects Zivver messages and decrypts them on-the-fly using the Zivver API. Messages are decrypted only when actively displayed by the user and are never stored locally.
Simple Startup Minimizer
This extension will minimize Thunderbird on startup, it is very simple and I didn't put much work into it but it should work on all platforms. Please let me know if you want more features added into it.
GMail Labels
Shows GMail labels in each message's headers panel. When using Thunderbird with a Gmail account, it is not possible to guess which Gmail labels a message was applied (and in which folders it can be found). This extension provides this information
EagleCloud Extension
Works along with EagleCloud Information Security product to secure sensitive information based on company policy.
ThunderFWD
White Screen
Use white screen test to detect dead pixels, stuck pixels, and other display defects.
Black Screen
Use black screen test to detect dead pixels, stuck pixels, and other display defects.
ProtonMail Encryption Status
When using ProtonMail Bridge to integrate Mozilla Thunderbird withProtonMail, it's not easy to tell which emails were end-to-end (E2E) encrypted. This add-on puts an icon in the toolbar above every message to show you its encryption status.
Dark Reader
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.
Open Google Tasks
Huastec spell checker
Requires Restart
This is a spell checker for Huastec (Tének) language. It is based on the Potosina variety.
Copyright: Jesus Carretero. University Carlos III of Madrid. Spain
Thanks to Kevin Scannell (SLU, USA)
Komi (kpv) spellchecker dictionary
Komi (kpv) dictionary for spell-checking in Firefox and Thunderbird
Udmurt spellchecker dictionary
Udmurt dictionary for spell-checking in Firefox and Thunderbird
Chechen [Noxchi] Spell Checker
Interlingua - Spelling dictionary
Dictionario orthographic pro Interlingua.
Spelling dictionary for Interlingua.
Črkovalnik za slovenski jezik
Spell-checking dictionary for the Slovene language
Slovar za slovenski jezik
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