Essentials by RSL

by RSL

10 Add-ons in this Collection

Lightning by Mozilla Calendar Project

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.

Provider for Google Calendar by Philipp Kewisch

Rated 4 out of 5 stars 951 reviews

313,639 users

Allows bidirectional access to Google Calendar

Stationery by Arivald

Rated 4 out of 5 stars 104 reviews

32,188 users

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!

Display Mail User Agent by Jürgen Ernst

Displays icon for user agent of received mails.

Gmail Email Signature - WiseStamp by The WiseStamp Team

Rated 4 out of 5 stars 284 reviews

16,516 users

Signatures for Gmail, Google Mail, Yahoo Mail

Mailbox Alert by Tjebbe

Rated 4 out of 5 stars 104 reviews

14,928 users

Mailbox Alert allows you to specify, for each seperate mail folder, a message, sound and/or a system command that will be executed when new mail is found there. ...

Thunderbird Message Filter Import/Export by Wind Li

Rated 3 out of 5 stars 67 reviews

385 users

Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.

Zindus by Leni Mayo

Rated 4 out of 5 stars 199 reviews

14,959 users

Google and Zimbra contact sync for Thunderbird. (TB 24 and above NOT supported)

ToneQuilla by R Kent James

Rated 4 out of 5 stars 16 reviews

2,741 users

Adds a new action to mail filters to allow playing a particular sound when the filter matches. Also includes several sample sound files.

Mark All Read Button by Mark S Baines

Rated 4 out of 5 stars 30 reviews

3,681 users

Adds toolbar buttons to Mark All emails as Read, Mark Thread as Read, and Goto Next Unread Thread.

What are Collections?

Collections are groups of related add-ons that anyone can create and share.

Explore Collections