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RemindMe
Moves email into Inbox/RemindMe folder, and moves it back into Inbox after chosen time.
Change Link Appearance
Filtered Folder to Favorite
Add filtered folders to favorites. You may lose your favorites. For those with many folders.
Microsoft To Do - Quick Access
Quick Access to Microsoft To Do (Live) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
Open Google Tabs
Select Prev on Delete
Selection of the previous message (instead of next message - default behavior) when deleting (only for Thunderbird 115 or above).
If running Thunderbird between 78 and 114, use version 1.0.0
ThunderWebTabs
Opens Google Keep, Google Photos, Android Messages or any other website in Thunderbird's tab.
Users who encounter "Browser not supported errors" should try changing their User Agent. For more details, please visit the "Support site".
Toggle HTML
New UNEC
New UNEC is a browser extension that transforms the UNEC student panel into a modern and user-friendly interface. It dynamically replaces the existing webpage’s HTML, CSS, and JS with an improved design, featuring automatic dark mode, language.
Spacebar Clicker
With Spacebar Clicker, gamers can now test their spacebar speed within the browser. Every gamer can install the extension and practice to increase how many times they press the spacebar.
Dictionnaire Moore
Le dictionnaire Moore / Moor Gom-Biis No-Tũur Gʋlsg Sebre : "Burkina Faso" Edition mars 2015 Cemie.
Belarusian spellchecking dictionary (Taraškievica orthography)
Requires Restart
Belarusian spellchecking dictionary (Taraškievica orthography)
Беларускі слоўнік праверкі артаграфіі (клясычны правапіс)
GaelSpell Seanchló
Seo é an gnáthlitreoir GaelSpell, ach leis na consain bhuailte ḃ, ċ, ḋ, ḟ, ġ, ṁ, ṗ, ṡ, ṫ in ionad bh, ch, srl. An-oiriúnach do Twitter!
Church Slavonic Spelling Dictionary
The spelling dictionary is based on the Hunspell spelling dictionary for Church Slavonic (Church Slavic). Numerals only from 1 to 9999 are recognized.
Kashubian Spell Checker (Poland)
This Spell Checker may help writers verify correctness of their Kashubian spelling. It works under Firefox, Thunderbird, and SeaMonkey.
Nen werifikator kaszëbsczégò pisënkù mòże ùżëwac pòd Firefoksã, Thunderbird, ë SeaMonkey.
Diccionario Papiamento
Bambara/Bamanakan
Bambara spell-checker / Vérificateur orthographique pour le bambara / Bamanankan fililatilennanVérificateur disponible également comme Extension de la suite Libre Office
Русский словарь в дореформенной орфографии
Данный словарь используется для проверки текстов на русском языке в дореформенной орфографии.
Arabic Spell-checkerTo create your own collections, you must have a Mozilla Add-ons account.
