Newest Extensions

Subscribe

Edit Message Encoding Fallback Requires Restart

Fallback to a safe encoding, if you are replying to a message with unsupported encoding like UTF-16LE. (workaround for the Bug 961983)

Not yet rated
2 users
Added December 6, 2016

ThunderKeepPlus

Google Keep for Thunderbird

Rated 5 out of 5 stars (1)
223 users
Added November 5, 2016

Logout Requires Restart

This extension adds "Logout" to the folders context menu.
After you "Logout" you will be asked again for passwords for this account (incoming and outgoing).

Not yet rated
16 users
Added October 30, 2016

JIRA Integration Plugin (Beta) Requires Restart

Create Jira Tickets directly from within Mozilla Thunderbird (based on E-Mails). This Addons saves your Username and Password in clear text. Use on your own risk. (Also, you might need to disable the CSRF Filter in your JIRA Instance.)

Not yet rated
14 users
Added October 30, 2016

CustomizeMyBird

CustomizeMyBird add-on offers ui tweaks to improve Thunderbirds appearance (squared tabs, custom tab height, alternative Add-on Manager appearance, compact main toolbars and more).

Not yet rated
220 users
Added October 28, 2016

Zoiper Thunderbird Plugin Requires Restart

It allows you to make calls via Zoiper Communicator from Mozilla Thunderbird.

Not yet rated
104 users
Added October 24, 2016

Quick Locale Switcher 2 Requires Restart

Allows you to quickly switch to a different language (User Interface, Spell Checker Dictionary and Website content) in your Mozilla application.

Rated 5 out of 5 stars (1)
588 users
Added October 17, 2016

Attach from Clipboard Requires Restart

Create file attachments directly from the system clipboard.

Not yet rated
148 users
Added October 17, 2016

Reply As Original Recipient Requires Restart

Reply with the From: field set to the To: field from the original email.

Rated 5 out of 5 stars (1)
52 users
Added October 17, 2016

Reply To All Reminder Requires Restart

Asks for confirmation when "Reply" instead of "Reply to All" is pressed on an email with multiple recipients.

Not yet rated
47 users
Added October 8, 2016

SMTP Switch Reborn Requires Restart

SMTP Chooser.

Not yet rated
44 users
Added October 8, 2016

The Adblocker Project

A powerful ad blocker that blocks ALL ads but ads from publishers who shares revenues with targets YOU choose.

Rated 5 out of 5 stars (3)
261 users
Added September 5, 2016

Ad-Blocker

Ad Blocker lets you block all ads, tracking & malware from the web world. It is an effective solution to browse the web without offensive and annoying ads you hate to see.

Rated 3 out of 5 stars (9)
40,004 users
Added September 1, 2016

Adblock Cyceam

Earn extra money while browsing online! Get rid of ads, and optionally tip your favorite sites.

Not yet rated
173 users
Added August 29, 2016

Thunderbook Requires Restart

Export messages (including RSS items) as e-books.

Not yet rated
184 users
Added August 26, 2016

Checkbox Column Requires Restart

Adds a custom column to Thunderbird's messages list (thread tree), making it easier to select multiple messages on devices with a touchscreen display.

Rated 5 out of 5 stars (2)
184 users
Added August 26, 2016

Disable Add-on Compatibility Checks (Version 40+)

Reinstates the extensions.checkCompatibility preference.

Rated 5 out of 5 stars (2)
13,223 users
Added August 18, 2016

Stego Block Requires Restart

Embeds a small secondary, encrypted message in an email, known as a Stego Block.

Not yet rated
5 users
Added August 9, 2016

Image Zoom (ugly fixes) Requires Restart

An ugly attempt at fixing Image Zoom

Rated 3 out of 5 stars (6)
830 users
Added August 9, 2016

AastraClickToCall Requires Restart

Converts telephone numbers into clickable links for use with Aastra IP Phones

Not yet rated
30 users
Added August 2, 2016