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ChatGPT Addon
Integrates ChatGPT with Thunderbird for quick and easy access to its conversational AI capabilities.
Redo Button
AutoReplace
This AddOn offers a function of autocorrection / auto text replacement. You can save a shortcut and a replacement and it will replaced automaticly if you type your new eMail text.
Undo Button
PrettyBlockquote
The add-on ensures that the quoted text in your reply is clearly highlighted with a vertical blue line, even when viewed by recipients using different email clients like Gmail or macOS, by using inline CSS on the blockquote HTML tag.
Account Check
Checks account settings against those listed in the Thunderbird autoconfig database and offers to fix settings that don't match. This is the same check performed when setting up an account.
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.
BorderColors D
Shows a colorful border around the "New Message" window, so you can tell different identities apart.
Builds on the original BorderColors and the "GT" version, adding different border styles.
ansitel Click-to-Dial
This plugin will call a selected number by clicking the right mouse button.
Safelink removal
Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.
Aranese spell checker
ThunderThings
sms77
Header Tools Improved
Just Report It
Just Report It (https://justreport.it) is an email plugin which tackles spam the right way. Report emails straight to SpamCop, the Registrar, a custom email address or any combination in between!
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.
Open in browser
A context menu item to open the links associated with feed items in the default browser and then mark them as read.
To create your own collections, you must have a Mozilla Add-ons account.
