IE Tab 2 (FF 3.6+)
Enhanced version of the classic IE Tab that includes support for FireFox 3.6 and beyond.
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Multirow Bookmarks Toolbar
Multi Row Bookmarks Toolbar.
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Better Gmail 2
Add useful extra features to Gmail, like hierarchical labels, an unread message icon on your browser tab, file attachment icons, and more.-----------------------------------------------------------------------------
AutoCopy
Select text and it's automatically copied to the clipboard. Like Linux or mIRC. -----------------------------------------------------------------------------
IE Tab
This is a great tool for web developers, since you can easily see how your web page displayed in IE with just one click and then switch back to Firefox.
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Xmarks (Formerly Foxmarks)
Xmarks is the #1 bookmarking add-on. Install it on all your computers to keep your bookmarks and (optionally) passwords backed up and synchronized. Xmarks also helps you uncover the best of the web based on what millions of people are bookmarking.
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Download Statusbar
View and manage downloads from a tidy statusbar - without the download window getting in the way of your web browsing.
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Tab Mix Plus
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager.
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SkipScreen
Skips unnecessary pages on sites like Rapidshare, Megaupload, zShare, Mediafire, and more. Try it out, or watch a demo at skipscreen.com
SkipScreen will be tenaciously maintained and improving all the time. Why click through ad-laden pages and wait for countdowns when your computer can do it for you?
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Gmail Manager
The original Gmail notifier for multiple accounts. Allows you to manage multiple Gmail accounts and receive new mail notifications. Displays your account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.
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Sxipper
Forget your passwords! Sxipper accurately fills in forms, manages passwords and your OpenIDs.
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iMacros
Automate Firefox. Record and replay repetitious work. If you love the Firefox web browser, but are tired of repetitive tasks like visiting the same sites every days, filling out forms, and remembering passwords, then iMacros for Firefox is the solution you’ve been dreaming of! ***Whatever you do with Firefox, iMacros can automate it.***
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NoScript
his tool provides extra protection to your Firefox.
It allows JavaScript, Java and other executable content to run only from trusted domains of your choice, e.g. your home-banking web site, guarding your "trust boundaries" against cross-site scripting attacks (XSS) and Clickjacking attempts, thanks to its unique ClearClick technology.
Such a preemptive approach prevents exploitation of security vulnerabilities (known and even unknown!) with no loss of functionality...
Experts do agree: Firefox is really safer with NoScript ;-)
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Greasemonkey
Allows you to customize the way a webpage displays using small bits of JavaScript.
Hundreds of scripts, for a wide variety of popular sites, are already available at http://userscripts.org
You can write your own scripts, too. Check out http://wiki.greasespot.net/
TinyURL decoder script for GreaseMonkey
Decode shortened URLs to original URLs
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Tamper Data
Use tamperdata to view and modify HTTP/HTTPS headers and post parameters.
Trace and time http response/requests.
Security test web applications by modifying POST parameters.
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ChatZilla
A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.
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Easy YouTube Video Downloader
Easiest Youtube video downloader ever, single click direct download buttons for FLV, 3GP, MP4 and HD qualities.
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User Agent Switcher
Adds a menu and a toolbar button to switch the user agent of the browser.
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FireTorrent
FireTorrent offers truly native integrated support for BitTorrent into Firefox and Wyzo with competitive torrent download speeds. Fire Torrent integrates seamlessly into your downloads window, making downloading torrents with Bit Torrent really easy!
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eBayBuddy
ebay Buddy is a small ebay extension for quick navigation of eBay.com
and other related tools through the right-click context menu or a single toolbar button you can add from the customize menu. It includes lots of advanced search features, category browsing, discussion boards, a full site map of ebay, paypal, comparison price shopping and more.
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Mouse Gestures Redox
Allows you to execute common commands (like page forward/backward, close tab, new tab) by mouse gestures drawn over the current webpage, without reaching for the toolbar or the keyboard.
You can also use click-only "rocker" gestures which are even faster than drawn gestures.
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Memory Fox
A Mozilla Firefox Memory Recovery and Retention Add-On.
Note: Memory Fox, was formerly named AFOM 2.0.
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Linkification
Converts text links into genuine, clickable links.
To view and set options, you can (1) use the Linkification right-click context menu, (2) right-click the status bar icon and click "Options", or (3) click Tools->Extensions, and double-click the Linkification item.
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Firebug
Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page.
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