Top-Rated Extensions

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Mailopen Requires Restart

Open an email file from the commandline

Rated 1 out of 5 stars (1)
19 users

Lowercase Email Addresses in Message Headers Requires Restart

Shows lowercase email addresses in message headers and their tooltips.

Rated 1 out of 5 stars (1)
54 users

Large Fonts Requires Restart

This add-on enables you to change the font size of the plain text editor of Thunderbird.

Rated 1 out of 5 stars (1)
478 users

Dialectic Dialer Requires Restart

Dial phone numbers with Dialectic (Dialectic is for OS X only). In addition, when a page loads, phone numbers can optionally be highlighted and hyperlinked to dial Dialectic.

Rated 1 out of 5 stars (1)
37 users

ToggleFullHeaders Requires Restart

Allows you to customise the message panel buttons to add a "Toggle Headers" button that will switch between showing and hiding the full headers.

Rated 1 out of 5 stars (1)
92 users

Mukparasi Requires Restart

A Korean popup dictionary based on Rikaichan
Requires the additional dictionary addon.

Rated 1 out of 5 stars (1)
22 users

Disable about:config Requires Restart

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
771 users

Lightning Invitation Notifier Requires Restart

This extension is an extension to Mozilla Lightning for Thunderbird.
It shows a toast message and opens the invitations window when an invitation arrives.

Not yet rated
38 users

ebay Template Generator

Generate e-bay templates online - in few minutes.

Not yet rated
18 users

Delete Read Emails Requires Restart

Adds a button in Thunderbird's toolbar that enables you to delete all your read emails at once

Not yet rated
27 users

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
10 users

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

Zoiper Thunderbird Plugin Requires Restart

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

Not yet rated
117 users

Attach from Clipboard Requires Restart

Create file attachments directly from the system clipboard.

Not yet rated
275 users

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
102 users

SMTP Switch Reborn Requires Restart

SMTP Chooser.

Not yet rated
68 users

Adblock Cyceam

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

Not yet rated
205 users

Thunderbook Requires Restart

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

Not yet rated
231 users

AastraClickToCall Requires Restart

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

Not yet rated
27 users

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
183 users