Up & Coming Extensions
Ad Blocker lets you block all ads, tracking & malware from the web world. It is an effective solution to browse the web without offensive and annoying ads you hate to see.
Emoji Requires Restart
Add emojis to your e-mails.
Add-ons Manager Context Menu Requires Restart
Add more items to Add-ons Manager context menu.
LCD Clock Requires Restart
displays a LCD Clock in your Toolbar
Finally, an efficient blocker. Easy on CPU and memory.
LookOut (fix version) Requires Restart
LookOut is a plugin which allows Thunderbird to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
Support: Thunderbird and SeaMonkey
AutoProxy-ng Requires Restart
This is a fork of AutoProxy, which can run the latest version of Firefox.
Block ads and manage proxy.
ThunderHTMLedit Requires Restart
Thunderbird HTML editor. This add-on adds a HTML tab to the composition window where you can see and edit the HTML source of the message.
MarkSubfolders New Requires Restart
Mark all read for Subfolders
It's the same like MarkSubfolders but it's compatible with Firefox 4 and later.
Configures B-Trust security devices, imports B-Trust certification chain.
TryAgain Requires Restart
TryAgain keeps trying to load a webpage when the server cannot be reached.
LookOut+ Requires Restart
LookOut is a plugin which allows to interface with Microsoft's mail tools by decoding metadata and attachments encapsulated/embedded in a TNEF encoded attachment (aka winmail.dat).
This version is a fix for Seamonkey 2.*.
CardBook Requires Restart
A new Thunderbird address book based on the CardDAV and vCard standards.
Twitter : @CardBookAddon
AutoProxy Requires Restart
Are you concerned about your privacy? Or, are you blocked from some websites by a firewall? And, are you arming yourself with a proxy? In that case, AutoProxy is designed for you! A tool to help you use your proxy automatically & efficiently.
Menu Wizard Requires Restart
Customize menus : Helps removing, moving and renaming menus and menu items
Colorize important menu for ease of use! (use Style (CSS))
Change or disable any of used keyboard shortcuts
Support: Firefox, Thunderbird and SeaMonkey
Address Move Button Requires Restart
Allow you to add a Address Move Button to mail compose window.
Cleans your Firefox, Thunderbird, SeaMonkey, Fennec (unstable), Instantbird and BlueGriffon.
HTTPS Everywhere Requires Restart
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix.
German Spell Check Requires Restart
Important!!! If you can't see the German flag, please click: View --> Toolbars --> Bookmarks Toolbar. This is a German spelling checker for finding misspellings.