About this Collection
Add-ons to enhance the Thunderbird experience
7 Add-ons in this Collection
Finally, an efficient blocker. Easy on CPU and memory.
Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.
Allows bidirectional access to Google Calendar
British English Dictionary R1.19 for Firefox, Thunderbird and SeaMonkey by David Bartlett.
To enable, right-click in a multi-line text box, select "Languages", then "English / United Kingdom".
Displays icon for user agent of received mails.