A simple Thunderbird extension. Add the toolbar button that just marks all messages as read in the current folder.
Thunderbird >= 78.0
- Download the latest archive
simple-mark-all-as-read.zip
from the release page. - Start Thunderbird and open the Add-ons Manager tab (Tools menu -> Add-ons).
- Drag and drop the archive into the Add-on Manager.
- Sometimes multiple messages are not marked as read. ๐ค๐ค๐ค
MIT License