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Auto-Mark Folder Read
New messages can be automatically marked as read in common folders (e.g. spam, trash, drafts, templates).
For TB up to 121, please use the most recent v1.5.* add-on release.
For TB as of 122, just use the latest add-on version (1.6 or higher).
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".
PrioMailbox
PrioMailbox helps you prioritize your Thunderbird inbox by automatically tagging and highlighting important emails. Trainable tags organize your inbox efficiently, saving time and reducing distractions, with a simple, user-friendly interface.
SentAutoMove
Change Link Appearance
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
ThunderSuite - Customize your Quick Access Sidebar
This extension allows user editing of the spaces sidebar.
Create custom spaces from the extension options, to turn the new toolbar introduced with Supernova into your personal quick access toolbox.
Gemini - Quick Access
Quick Access to Google Gemini AI (formerly Bard) in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
GetMyInvoices
Save your attached PDF invoices or archive and store complete invoice e-mails directly to your GetMyInvoices account from Thunderbird
UnInbox - Quick Access
Quick Access to UnInbox in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.
CollectAddresses
Two Dynamic Birds
An extension of the "Two Little Birds" and "Dracula" themes that includes a toggle button to turn on dark mode.
The position of the light/dark toggle button can be customised to avoid it covering the cute birds!
BestReply
BestReply is an add-on that aims to improve users’ experience by providing quick services to the user such as summarization of emails, response generations, as well as a smart chat with our AI model based on the email they are reading.
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.
To create your own collections, you must have a Mozilla Add-ons account.
