Search in the address bar without changing your search engine.
This wizard creates an XPI that rebrands Firefox, SeaMonkey or Thunderbird. You can change the brand name as well as the brand images and icons.
Search in the awesome bar without changing your search engine. Type a k followed by a space, then your search.
Operator leverages microformats and other semantic data that are already available on many web pages to provide new ways to interact with web services.
Forces safe search on the major search engines.
Add OpenSearch XML files directly to Firefox and save them as well by holding down the shift key.
Designed for simple & secure kiosk browsing in the Linux distribution Webconverger.com
Alleviating absent Awesome Bar angst
An implementation of IE8 Activities (now called Accelerators) for Firefox
Converts slideshows to web pages where possible (answers.com)