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Header Spy
A Firefox add-on that shows HTTP header in statusbar....
Header Monitor
Header Monitor - Mozilla statusbar with HTTP response header monitor....
Header Skip
Firefox add-on that allows you to scroll down a page when the page is a realgm message forum page....
BBCode Header
Custom control for REALbasic that deals with text customization....
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Header Design Inc
A Thunderbird add-on that provides you a concise message reader...
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Header Spotlight
A free and Spotlight themed message style for Adium...
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Site Header Editor
A Firefox extension that lets you modify the headers that are usually sent to web servers...
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ThunderBird Reset Quote Header
ThunderBird Reset Quote Header - ThunderBird add-on that modifies the quote headers on replies....
header scroll extension for ThunderBird
A Thunderbird add-on that adds a scrollbar to the extended all header view...
ThunderBird Header Tools Extension
ThunderBird add-on that allows you to modify the header detail of messages....
Display mailing list header for ThunderBird
A Thunderbird add-on that implements RFC 2369...
mail header Thunderbird extension Thunderbird mail list header
Download All
A Google Chrome add-on that allows you to download multiple files linked to any webpage at once...
Download Scan
A Firefox add-on that automatically opens an Antivirus scan after a download is complete...
wp-download
Open source Wikipedia database dump downloader...
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Download URLs
Download URLs is a small Automator action that helps you retrieve URLs from a specified webpage...
Download Queue
Download Queue - A very powerful download manager...