Udseende og tilpasning
This add-on enables you to change the font size of the plain text editor of Thunderbird.
Tategaki allows vertical writing-mode on mail compose window.
This add-on enables highlighting the account names which contain unread messages.
Convert the current webpage into a PDF file!
Just for now - get also a PRO version for FREE!
A simple button to invoke the (already existing) send later functions.
Click-to-Dial Plugin für ansitel VoIP-Telefonanlagen zum Markieren und Wählen von Rufnummern in Mozilla Thunderbird.
Shows lowercase email addresses in message headers and their tooltips.
Adds a custom column for Sender Frequency to the thread pane
Classic Pop-up Alerts Ingen genstart
This addon returns the old view of the pop-up notifications, as in Firefox 4.0 - 43.0
GNotifier Ingen genstart
Add-on for Firefox and Thunderbird. Replaces built-in notifications with the OS native notifications. It supports most Linux Desktop Environments, Windows 8.1 & 10.
Shows email addresses in message headers, including those of contacts, and provides control over message header presentation.
custom additions to Stylish extension
No need flash plugin on embeded youtube movies Ingen genstart
No need flash plugin on embeded youtube movies
Hides the badge for new messages of the Thunderbird app icon on Mac OSX.
Allows the user not to restore tabs at startup in Thundertbird
Enables one to assign a photo to a contact by dragging and dropping it from the local filesystem.
Zoom in and out of any image on a page
Let's show the calendar color on Lightning reminders!
Provides ability to disable "about:*" pages by the configuration.
Squared Australis Tabs (Tb) Ingen genstart
A small and simple extension, which replaces the curved tabs of the Australis design with squared ones, similar to Thunderbird v14 and prior.