Detect technology and software presence on Websites.
Download multiple files from various Web pages.
Enhance your Reddit browsing experience.
Pose as another browser by changing the User-Agent header.
Add a theme to your Firefox inspired by the art of Japanese tattoo.
Get cash back and automatically find and apply coupons.
Allow active content to run only from sites you trust.
Add a Web page easily to your EverNote application as a new note.
Block online ads while browsing with Firefox.
