Privacy and Security
Download every YouTube video you want and you can download them as Full HD MP4, FLV, 3GP, MP3, M4A and AAC formats.
Auto delete cookies and localStorage objects as soon as they become unused
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.
Earn extra money while browsing online! Get rid of ads, and optionally tip your favorite sites.
Der Spam-Filter für Xing! Entfernt störenden Spam aus der Xing-Timeline und den Gruppen.
Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.
Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246
jsbtn Requires Restart
JS on/off status bar button
adaware ad block improves your browser’s speed and protects your privacy by blocking ads and trackers. It also improves online security by blocking malicious URLs and establishing the most secure connection available.
Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.
Adds a new page that shows add-on memory usage
Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.
한국 웹의 광고를 효율적으로 차단합니다.
Rewrite http response body using search & replace patterns
Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.
The "Responsible Blocker" arrives to save the Internet, this extension blocks all those annoying ads, but allows only small and acceptable ads, so the websites you like can continue online.
The "Responsible Blocker" arrives to save the Internet
Restrict Proxy by Private Windows, Tabs and Domain List
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
Automatically apply settings recommended by security and privacy experts.