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One-Click Forward
Forward emails directly through a dropdown of predefined recipients.
Configure recipients in settings. Use the message toolbar button "Quick Forward" to open a dropdown with your recipients and forward directly, or hold Shift to edit first.
MinimizeToTray Reanimated Requires Restart
MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.
Hide Duplicates From 'All Mail'
Hides duplicate emails from the 'All Mail' folder upon clicking on a result from Global Search, so that if one email is in both the 'All Mail' folder (e.g. of Gmail) and another folder (e.g. 'Sent'), it'll only show the email from the other folder.
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.
ConfirmConversionsAtSelecting
[Notification] : : As of June 21st 2021, automated browserAction popup was fixed.
Confirm conversions of e-mail to event and task at selecting thread tree children.
Glory be to God!
External Editor Revived
Edit emails in external editors such as Vim, Neovim, Emacs, etc.
Message Mover
This add-on lets you move messages from a specific folder (and sub-folders) to a new folder.
Open Google Tabs
Open up Google Calendar, Notes, and Microsoft Outlook in a new tab.
GCalTab
GCalTab is a Thunderbird add-on that opens Google Calendar website in a Thunderbird tab. It features a beautiful dark mode thanks to the DarkReader algorithm.
SpoofDetection
Diese Erweiterung überprüft ungelesene E-Mails auf Spoofingversuche. Die E-Mails werden mithilfe von fünf unterschiedlichen Tests untersucht um deren Legitimität festzustellen. Die Tests werden einzeln erklärt auf der Einstellungsseite.
Google-4-TbSync
This provider add-on adds Google synchronization capabilities to TbSync. Only contacts and contact groups are currently managed, using Google's People API.
Please read the "About this Add-on" section below carefully!
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.
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.
AutoCopy_rebirth Requires Restart
Lightweight add-on that automatically copies any highlighted text to clipboard.
Sender Domain
Adds optional columns to the messages pane.
Example : "abc@example.com"
* domain column -- "example.com"
* reverse domain column -- "com.example"
Bulk organize your messages by domain (eg. remove spam, back up, separate in folders)
To create your own collections, you must have a Mozilla Add-ons account.