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Persian 2nd Alphabet Spell Checker Dictionary
This is a spell check dictionary for the Persian language transcribed in “Alefbā-ye 2om”, a standardized 2nd Persian script based on the Latin alphabet. For more information see http://alefbaye2om.org.
Ślōnskŏ korekta tekstu
Ślōnskŏ korekta ôrtografije do aplikacyji Mozilla.
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Silesian spell check for Mozilla applications.
Kurdish Sorani Spellchecker
Kurdish Sorani Spellchecker for Firefox, Thunderbird and SeaMonkey by Dr Yadgar Balaky and Ranjbar Balisane.
To enable, right-click in a multi-line text box, select "Languages", then "ku-CKB".
Словникъ Български
This is a Bulgarian spell-checker based on the historic orthography from 1899 known as "Ivanchevski pravopis". It is using the Mozilla built-in spell-checking engine (hunspell).
Uyghur Spelling Dictionary (Уйғурчә Имла Луғәт)
Uyghurche Imla Lughet Уйғурчә Имла Луғәт
Enables spell checking in any text field for Uyghur Cyrillic Alphabet.
ChicSpell - Chichewa Spellchecker
Requires Restart
Kukuthandizani Kukonza Matchuliro a m'Chichewa (Helping you correct Chichewa Spellings)
Chuvash spellchecker dictionary
Chuvash dictionary for spell-checking in Firefox and Thunderbird
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.
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.
Smileyfixer
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.
Night and Day Dynamic
A theme that switches between sun and moon based on time of day.
This is the canonical example dynamic theme published by Mozilla: https://github.com/mdn/webextensions-examples/tree/master/dynamic-theme
Lojban spell check dictionary
Mark GMail Read
Bulgarian+Germany Spell Checker
Едновременна проверка на правописа за български и немски езици
Simultaneous spelling of Bulgarian and German
Gleichzeitig Schreibweise von bulgarischen und deutschen
URL Link
URL Link is a small Thunderbird extension that allows you to select a non-URL in a mail/news message or web-page, and open it in a browser window.
Next Unread Group (Mark All Read)
Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message
Dark Reader
Dark mode for every email. Take care of your eyes, use dark theme for night and daily messaging.
ThunderFWD
Tomba : Email FinderTo create your own collections, you must have a Mozilla Add-ons account.
