Mozilla Firefox beta specifications

Browsers: Chrome Extensions; Firefox Add-ons & Plugins; Internet Explorer Add-ons & Plugins; Newsreaders & RSS Readers; Offline Browsers; Other Browser Add-ons & Plugins; Web Browsers

Google searches now utilize HTTPS
Full screen support for Mac OS X Lion implemented
Plugins can now be configured to only load on click (requires an about:config change)
The Awesome Bar now auto-completes typed URLs
Improved site identity manager, to prevent spoofing of an SSL connection with favicons
Pointer Lock API implemented
New API to prevent your display from sleeping
New text-transform and font-variant CSS improvements for Turkic languages and Greek
OS X: nsCocoaWindow::ConstrainPosition uses wrong screen in multi-display setup (752149)
CSS :hover regression when an element's class name is set by Javascript (758885)