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
19 users
Added Dec. 6, 2016

ThunderKeepPlus

Google Keep for Thunderbird

Rated 5 out of 5 stars (10)
2,705 users
Added Nov. 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).

Rated 5 out of 5 stars (1)
81 users
Added Oct. 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
21 users
Added Oct. 30, 2016

CustomizeMyBird

This add-on offers ui tweaks to improve Thunderbirds appearance (squared tabs, custom tab height, alternative Add-on Manager appearance, compact main toolbars and more). v2.0.5+ for Tb52-61+

Rated 5 out of 5 stars (7)
1,342 users
Added Oct. 28, 2016

Zoiper Thunderbird Plugin Requires Restart

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

Not yet rated
149 users
Added Oct. 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 (2)
2,199 users
Added Oct. 17, 2016

Attach from Clipboard Requires Restart

Create file attachments directly from the system clipboard.

Rated 5 out of 5 stars (6)
1,973 users
Added Oct. 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 (2)
174 users
Added Oct. 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.

Rated 5 out of 5 stars (1)
199 users
Added Oct. 8, 2016

SMTP Switch Reborn Requires Restart

SMTP Chooser.

Rated 5 out of 5 stars (1)
334 users
Added Oct. 8, 2016

Thunderbook Requires Restart

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

Rated 5 out of 5 stars (1)
724 users
Added Aug. 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 4 out of 5 stars (6)
406 users
Added Aug. 26, 2016

Disable Addon Compatibility Checks (Version 4-56)

Reinstates the extensions.checkCompatibility preference.

Rated 5 out of 5 stars (4)
1,992 users
Added Aug. 18, 2016

Stego Block Requires Restart

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

Rated 4 out of 5 stars (1)
6 users
Added Aug. 9, 2016

Image Zoom (ugly fixes) Requires Restart

An ugly attempt at fixing Image Zoom

Rated 4 out of 5 stars (17)
2,080 users
Added Aug. 9, 2016

AastraClickToCall Requires Restart

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

Not yet rated
19 users
Added Aug. 2, 2016

MultiTemplateLoader Requires Restart

Manages & applies multiple HTML templates when creating/replying messages.

Templates may be either local files or online links (http:// or ftp://). Up to 9 templates can be defined and easily switched, also using shortcut keys.

Not yet rated
454 users
Added July 22, 2016

Identity Checker Requires Restart

This add-on checks to sender identity when send a message.

Not yet rated
34 users
Added July 21, 2016

Layout Button Requires Restart

A toolbar button to switch between layouts.

Rated 4 out of 5 stars (3)
194 users
Added July 9, 2016