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Discord - Quick Access
Quick Access to Discord in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Proton Mail - Quick Access
Quick Access to Proton Mail in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
ChatGPT Addon
Integrates ChatGPT with Thunderbird for quick and easy access to its conversational AI capabilities.
Dolnoserbski pšawopisny słownik
Lower Sorbian spellchecking dictionary by the Sorbian Institute.
Grammar, Proofreading & Spell Checker
Check the grammar and spelling directly inside Thunderbird using Wordeep technology
Spellchecker Rumantsch Grischun
Paste code
Thunderbird addon creating a context menu option that pastes code beautifully in HTML messages
X-Original-To Column
This addon adds a new column called X-Original-To in the message list which shows the original recipient address of the message (the contents of the X-Original-To header). This can be useful for systems with catch-all email addresses.
Jitsi Meet event generator
Render Markdown Messages
This extension renders markdown-formatted messages as rich text. It preserves the fonts and formatting of plain text messages but adds support for markdown features like lists, code blocks, etc.
PowerFolder
Power Folder add-ons tool is used for large attachment in Mozilla Thunderbird extension.
Trello - Quick Access
Quick Access to Trello in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
AI Anywhere for ChatGPT
ChatGPT enhancer - adds context menu, keyboard shortcuts, history and more!
Tamizha Spellchecker
Requires Restart
Tamil spell checker derived from the OpenOffice spellchecker created by Tamizha Team
Uyghur Spelling Dictionary (ئۇيغۇرچە ئىملا لۇغەت)
Uyghurche Imla Lughet ئۇيغۇرچە ئىملا لۇغەت
Enables spell checking in any text field for Uyghur Arabic Alphabet.
Message Header Toolbar Customize
You can change icon display and button order. You can also hide unnecessary buttons.
Safelink removal
Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.
Telegram Web in Thunderbird
Autofile - fast e-mail to folder filing
Read an e-mail, hit Autofile button and it is filed / moved to the right mail folder based on the sender's address. No drag/drop needed. Autofile can discover folders to store each author mail. Will save you lots of time like defunct filemail.
To create your own collections, you must have a Mozilla Add-ons account.
