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Header Design Inc
A Thunderbird add-on that provides you a concise message reader...
message highlight preview Thunderbird extension highlight Link
Header Skip
Firefox add-on that allows you to scroll down a page when the page is a realgm message forum page....
Header Spy
A Firefox add-on that shows HTTP header in statusbar....
BBCode Header
Custom control for REALbasic that deals with text customization....
control custom RealBasic REALBasic control improve functionality
Header Monitor
Header Monitor - Mozilla statusbar with HTTP response header monitor....
Header Spotlight
A free and Spotlight themed message style for Adium...
adium xtra xtra adium message style message style adium customization
Site Header Editor
A Firefox extension that lets you modify the headers that are usually sent to web servers...
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ThunderBird Header Tools Extension
ThunderBird add-on that allows you to modify the header detail of messages....
header scroll extension for ThunderBird
A Thunderbird add-on that adds a scrollbar to the extended all header view...
ThunderBird Reset Quote Header
ThunderBird Reset Quote Header - ThunderBird add-on that modifies the quote headers on replies....
Display mailing list header for ThunderBird
A Thunderbird add-on that implements RFC 2369...
mail header Thunderbird extension Thunderbird mail list header
Custom Aliases
Colloquy plug-in that will allow you to create custom command aliases...
Stylish-Custom
An unofficial extension to Stylish...
Custom Launcher
Custom Launcher - Launching utility that can be easily modified to incorporate your own settings, graphics and sounds...
utility incorporate launching utility incorporate setting modify app
Custom Buttons 2
A Firefox add-on that allows you to create buttons....
Futura Custom
A futuristic font style for your projects...