Recently Updated Extensions
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Microsoft 365 Link Opener
Open a shared link of a SharePoint or OneDrive file directly with the right app, instead of the browser.
Additional Info for Simplelogin
For e-mails forwarded by Simplelogin, a pop-up displays the original sender of the e-mail, as well as the alias that the e-mail was sent to and the address that it was forwarded to.
Next Unread Group (Mark All Read)
Adds a Group button, marks current newsgroup or folder as read and moves to the next unread message
Next Unread Thread (Mark All Read)
Adds a Thread button, marks current thread or conversation as read and moves to the next unread message
Expression Search - NG
Powerful message search:
* Fuzzy search: Sylvia also finds Silvia
* Visual search query builder
* Type "f:fred fn:Vortrag" for messages from Fred, attachment name contains 'Vortrag'
* Type "t:(oo -pp)" for messages to oo, but not pp.
Auto Mark As Read
Automatically mark incoming messages as read if they are in one of selected folders.
An attempt to revive & enhance 'Mark Junk Read' by Alex Cabal
Correct Identity
Ever sent mail from the wrong email address because you forgot to select the correct identity?
Header Tools Improved
Allows to modify headers and source of messages
Grammar and Spell Checker — LanguageTool
Check your emails for spelling and grammar issues
Dysclusif
Simplifier la lecture de mails en supprimant l'écriture inclusive
regimail
AddOn for sending regimail with Thunderbird on Windows, MacOS and Linux.
*IMPORTANT:*
In order to use this AddOn, you need to install the regify client on your system and configure it with a valid regify account.
CardBook Featured
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter: @CardBookAddon
Extract 'Em! Featured
Extracts attachments from messages within an account or folder, with the option to select specific attachments. Extracted attachments are saved to a .zip file.
SmartProxy
SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.
10ten Japanese Reader (Rikaichamp)
Look up Japanese words with the hover of a mouse.
After enabling the add-on from the toolbar (or press Alt+R) simply hover over Japanese text and a popup displays corresponding dictionary definitions.
ObsidianClipper
ObsidianClipper is a Thunderbird extension to clip emails to the Obsidian notetaking application. Save an email to Obsidian seamlessly with one click. Customize the format of new note titles and note layout.
Owl for Exchange
Allows you to use your Exchange and Office365 email account with Thunderbird using Outlook Web Access (OWA).
Multimonth view
Multimonth View allows users to display multiple months in a single calendar view,
To create your own collections, you must have a Mozilla Add-ons account.