Most Popular Extensions
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Block sites containing pornography, or any other kind of material, based on simple keyword lists.
Easily download most popular video formats.
Play YouTube™ Videos in Flash or HTML5 Player
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.
Browser Security - DER Schutz vor Phishing und Malware
Makes every page (or only pages that you want) to have light text on dark background. Exact colors are customizable.
Enhance your YouTube watching experience! Auto HD, Ad Block, Cinema Mode, Mouse Wheel Volume Control, Screenshot...
One of the best extensions for YouTube™. All the features you need to make YouTube™ more awesome!
a download manager with multi-threading support
Makes a Printer Friendly & PDF version of any webpage. Removes navigation, ads, and junk. Formats the page for print so you save paper and ink. Good for the environment and your wallet.
The Ebates Cash Back Button makes earning Cash Back and finding Hot Deals easier than ever.
Actively blocks Google Analytics from running on your Firefox, manually stopping the website you visit from tracking you!
YouTube Center contains all kind of different useful functions which makes your visit on YouTube much more entertaining.
Right click YouTube video links on any websites, download it from context menu. Multi formats(mp4 flv 3gp), easy to use and fast to response.
This extension provides a list to almost all the settings that you may need to alter in order to enhance Firefox's speed.
Adds an about:addons-memory page that details add-on memory usage
"Restart" menu and button, with configurable shortcut key.