Lightning Nightly Updater (Unofficial) Requires Restart
Quickly get to the latest nightly build of Lightning relevant to the version of Thunderbird and the OS you're on.
Compact Menu 2 Requires Restart
Add a compact menu button to the navigation toolbar, and hide the menu bar.
XML Digital Signature Tool Requires Restart
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)
Dog Ears Requires Restart
Mark important parts of a webpage to easily relocate them.
Key Manager Requires Restart
KeyManager Tool: Firefox Add-on for Key Generation, Certificate Enrollment, CRL Signing, and Identity and Authority Delegation
LookOut 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).
Font Finder Requires Restart
FontFinder is created for designers, developers and typographers. It allows a user to analyze the font information of any element on a page, copy any piece(s) of that information to the clipboard, and perform inline replacements to test new layouts.
Fight the text ads! Element Hiding Helper is a companion extension for Adblock Plus meant to make creating element hiding rules easier.
A simple extension that counts the number of open tabs per window and displays the count in the toolbar...
MoveThrobber Requires Restart
Move SeaMonkey's throbber from the Toolbar to the Menubar.
HashColouredTabs+ Requires Restart
Improves tab identification by providing a small colored icon for any site which doesn't have its own 'site icon'.
★ 'favicon' now also shown in history and bookmarks ★
IsAdmin Requires Restart
Shows whether the application is running with admin privileges, using an icon in the status bar; useful if logged in as an administrator and you use privilege limitation tools such as DropMyRights, RunAs or Windows User Account Control.
World Weather+ Requires Restart
Displays local weather information from around the world...
Filter Uploader for Adblock Plus (unofficial) Requires Restart
DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!
This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...
PhishTank SiteChecker Classic Mod Requires Restart
PhishTank SiteChecker is an advanced Phishing Protection extension that uses data from PhishTank.com to determine if a site is a phishing site or not. If it is, it will block the site and protect you from the site
Tabinta Requires Restart
Tabinta lets you insert tab characters in multi-line text input fields. The name itself is a shorthand for "Tab in Textarea"...
Relaxed the HTML Validator Requires Restart
"Relaxed" is a HTML validator which validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns.
KarClient Requires Restart
By installing this plugin you will be able to record and playback songs at kSolo.com...
docked JS-Console Requires Restart
docks the JS-Console to the Bottom of the Browser
feel free to have a look at the source (see below) and suggest enhancements (borstel33 web de , Subject: docked JS-Console)
Live HTTP Headers Requires Restart
View HTTP headers of a page and while browsing.