Mark Read On Reply Requires Restart
A simple extension to mark messages read after you click a reply menu or button (or Ctrl+R)
Expertspam Requires Restart
Report spam, false-positives or phishing back to your antispam provider.
Tabbed Mail Preferences Requires Restart
Enhances control over some aspects of tabbed mail browsing.
PassToScript extension Requires Restart
Extension to pass e-mail in eml (raw) format directly to the script specified
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"...
Add-on has now been discontinued, see below.
Only Minor Update Requires Restart
Applies only minor updates of the application.
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.
Cairo-Dock unread messages Requires Restart
Displays the number of unread messages in all inboxes on your dock.
Spoof Detector Requires Restart
Extension for Email Spoofing Detection
DOM Inspector - Mac OS X Requires Restart
Inspect the DOM of HTML, XUL, and XML pages, including the mail...
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...
Thunderbook Requires Restart
Export messages (including RSS items) as e-books.
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.
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.
Splash! (Compatible version of Firefox 4) Requires Restart
Adds a splash screen. Supported in Firefox, Flock, Thunderbird, Sunbird, eMusic Remote, Songbird and Sunbird.
Colorify Unread Watched NNTP Requires Restart
Colorizes names of newsgroups that have watched threads with unread messages.
World Weather Requires Restart
Display local weather information from around the...
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.
SMSalias MozClient Requires Restart
SMSalias is a Firefox/Thunferbird extension that enables you to send SMS messages directly from Browser/email application...