T-Bird

by Grover Harrell

17 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.

Bluhell Firewall by Diego Casorran

Rated 5 out of 5 stars 296 reviews

110,033 users

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

HTML5 Video Everywhere! by lejenome

Rated 4 out of 5 stars 39 reviews

77,762 users

Replace video player with Firefox native video player

Adblock Edge by adstomper

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Experimental

Rated 5 out of 5 stars 305 reviews

387,168 users

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

**This addon has been discontinued**

Google Privacy by Herrminator

Rated 5 out of 5 stars 32 reviews

29,585 users

Make some popular websites respect your privacy settings.
Please see the known issues below!

Mail Redirect by Pawel Krzesniak, Onno Ekker

Rated 4 out of 5 stars 130 reviews

35,869 users

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Signature Switch by Achim Seufert

Rated 4 out of 5 stars 180 reviews

83,119 users

Switch the signature on/off or choose a new one from your predefined set...

Addressbooks Synchronizer by Guenter Gersdorf

Rated 4 out of 5 stars 59 reviews

34,085 users

Synchronizes selected addressbooks with other instances of thunderbird
using ftp/webdav/imap servers

ThunderBrowse by GS! Networks

Rated 3 out of 5 stars 163 reviews

22,387 users

Did your friend send you a cool link? Want to read the rest of that interesting article? Don't want to open up your web browser just to view it? You don't have to! Just view it in Thunderbird with ThunderBrowse!

Auto Address Cleaner by markopee

Rated 4 out of 5 stars 49 reviews

16,700 users

Removes comment, display name automatically from addresses before sending mail.

Custom Address Sidebar by shimamu

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Experimental

Rated 4 out of 5 stars 6 reviews

5,234 users

Allow you to help address sidebar more useful.

Flexible Identity by Paul Kolomiets

Rated 4 out of 5 stars 24 reviews

1,586 users

Selects an identity based on the recipients list when sending an email
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