Top-Rated Extensions

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Mark Read On Reply Requires Restart

A simple extension to mark messages read after you click a reply menu or button (or Ctrl+R)

Rated 2 out of 5 stars (2)
38 users

Expertspam Requires Restart

Report spam, false-positives or phishing back to your antispam provider.

Rated 2 out of 5 stars (2)
205 users

Tabbed Mail Preferences Requires Restart

Enhances control over some aspects of tabbed mail browsing.

Rated 2 out of 5 stars (2)
1 user

PassToScript extension Requires Restart

Extension to pass e-mail in eml (raw) format directly to the script specified

Rated 2 out of 5 stars (2)
14 users

Nightly Tester Tools Lite Requires Restart

This is a cut down version of Nightly Tester Tools by Mossop, which is 77.6 KB. I've only included the "copy build id" and "build id in titlebar"...

Rated 2 out of 5 stars (8)
14 users

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
10,383 users

Only Minor Update Requires Restart

Applies only minor updates of the application.

Rated 2 out of 5 stars (1)
638 users

Hitsteps Analytics Requires Restart

Hitsteps Analytics is a powerful real time website visitor manager, it allow you to view and interact with your visitors in real time.

Rated 2 out of 5 stars (1)
53 users

Cairo-Dock unread messages Requires Restart

Displays the number of unread messages in all inboxes on your dock.

Rated 2 out of 5 stars (1)
97 users

Spoof Detector Requires Restart

Extension for Email Spoofing Detection

Rated 2 out of 5 stars (1)
42 users

DOM Inspector - Mac OS X Requires Restart

Inspect the DOM of HTML, XUL, and XML pages, including the mail...

Rated 2 out of 5 stars (1)
0 users

FlatStyle for Thunderbird Requires Restart

This gives you a style similar to MS Office XP in your Thunderbird menus and toolbars, and Calendar as well if you have that installed. It also changes the category-selector in the options window to use your system colors, instead of always being...

Rated 2 out of 5 stars (1)
0 users

Thunderbook Requires Restart

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

Rated 2 out of 5 stars (1)
549 users

Thunderbird Pedophile Reporter Requires Restart

This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.

Rated 1 out of 5 stars (3)
9 users

ePhotoUploader Requires Restart

ePhoto Uploader is a Mozilla/Firefox addon to allow you to upload any image on websites you're browsing to your ePhotoBay account by just one click. For the addon to work a free ePhotoBay account is required.

Rated 1 out of 5 stars (2)
26 users

Splash! (Compatible version of Firefox 4) Requires Restart

Adds a splash screen. Supported in Firefox, Flock, Thunderbird, Sunbird, eMusic Remote, Songbird and Sunbird.

Rated 1 out of 5 stars (2)
1 user

Colorify Unread Watched NNTP Requires Restart

Colorizes names of newsgroups that have watched threads with unread messages.

Rated 1 out of 5 stars (2)
0 users

World Weather Requires Restart

Display local weather information from around the...

Rated 1 out of 5 stars (2)
0 users

Reply All Control Requires Restart

Allows you to disable the ability to use Reply All when your email address does not appear in the To: or CC: fields. This usually means you've been BCC'd and Reply All might reveal the sender's sinister plot.

Rated 1 out of 5 stars (2)
0 users

SMSalias MozClient Requires Restart

SMSalias is a Firefox/Thunferbird extension that enables you to send SMS messages directly from Browser/email application...

Rated 1 out of 5 stars (2)
0 users