Add-ons
Up & Coming Extensions
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RemindIt
Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.
Phoenity Icons
Calendar Tweaks
Requires Restart
Allows several tweaks to the Thunderbird/Lightning calendar user interface including new selection styles and repeating event icons. Mimics the colors and styles found in MS Outlook.
Copy Address
Clippings for Thunderbird
FileLink Provider for Dropbox
Uploads your large attachments to your Dropbox instead of sending them by email. This uses Thunderbird's FileLink feature.
LightningButton
Requires Restart
Toolbar-Buttons for Lightning; advances the feature to get rid of the tabbar.
quickFilters
Quickly generate mail filters on the fly, by dragging and dropping mails and analyzing their attributes. Create a filter in less than 10 seconds, it's as easy as: drag, click, click.
By popular demand, supports SORTING filters alphabetically.
BiDi Mail UI
Outlook/Teams Appointments
Get the hidden appointment from an email from outlook/teams as a .ics-file - Icon: https://fontawesome.com/
Display Mail User Agent T
Featured
Displays the mail program with which the selected mail was written
*This addon is compatible with Thunderbird after Web Extesnsions support. Since development and operation check are done on Daily, it may not work on normal Thunderbird.
CategoryManager
Category manager for Thunderbird contacts, also allows to send an email to all members of a category (categories can be used as contact groups).
Grammalecte [fr] (for Thunderbird)
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.
AutoarchiveReloaded
Featured
Automatically archives old mails (Improved version of the orginal Autoarchive Add-on)
Google Calendar Tab
Folder Account
Lets you associate user accounts and identities with specific folders. Great for multiple users who share TB, or for managing mailing lists.
ThreadVis
Displays a small graphic visualising the context (thread) of the currently selected email.
Stationery
Requires Restart
Extension to mimic Outlook Express Stationery.
Allow you to use HTML files as templates for mail. Also allow custom template in replies or forwarded mail!
To create your own collections, you must have a Mozilla Add-ons account.
