Top-Rated Extensions

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Tabbed Mail Preferences Requires Restart

Enhances control over some aspects of tabbed mail browsing.

Rated 2 out of 5 stars (2)
6 users

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)
29 users

Boomerang Requires Restart

Boomerang E-Mail is an Add-on for the Thunderbird E-Mail-Client and is based on the Boomerang e-Mail algorithm (patent pending).

It provides functionality to send a certain e-mail (including attachments) to several recipients one after the other and...

Rated 2 out of 5 stars (6)
4 users

CardDAV Browser Requires Restart

A utility to browse vCards stored on a CardDAV server.

Rated 2 out of 5 stars (2)
977 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)
60 users

Purge Events Requires Restart

Purge events from Sunbird and Lightning calendars

Rated 2 out of 5 stars (6)
182 users

Test Pilot for Thunderbird

Add-on has now been discontinued, see below.

Rated 1 out of 5 stars (15)
9,868 users

Re: Sort Requires Restart

「Re2:」「Re4:」というふうに「Re:」をまとめます。

Rated 2 out of 5 stars (1)
38 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)
168 users

Spoof Detector Requires Restart

Extension for Email Spoofing Detection

Rated 2 out of 5 stars (1)
69 users

forcebutton Requires Restart

This add-on can resend mails, so you "force" the other side to answer. It could be useful at corporate environment.

Rated 2 out of 5 stars (1)
31 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)
1 user

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)
63 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)
91 users

BccInfo Requires Restart

Send any additional information to your BCC recipient.

Rated 2 out of 5 stars (2)
55 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)
19 users

Website to PDF Requires Restart

Convert the current webpage into a PDF file!

Just for now - get also a PRO version for FREE!

Rated 1 out of 5 stars (3)
4,846 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)
63 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)
7 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)
16 users