Mozilla released the latest version of Firefox Aurora and Firefox 7 beta for testing purposes. Firefox aurora is a pre-build and experimental version of latest Firefox features which will released before the beta version of respective releases.

Both the Firefox Aurora and Firefox 7 beta available to download from Firefox Future Release Channel. Both versions are available for Windows, Mac and Linux operating systems in multi-language also the beta version of Firefox available for Android too.

• Optimized Memory Use: Reduces memory use and improves performance areas including responsiveness, startup and page load time, even in complex websites and Web apps
• Improved memory management: The JavaScript garbage collector works more frequently to free up memory and improve performance when you have many tabs open or keep Firefox running for a long time
• Enhanced Firefox Sync: Your data syncs faster when a bookmark or password is added or changed
• Azure Direct2D for Canvas: Helps Firefox speed up HTML5 Canvas-based animation rendering
• Web timing spec: Enables developers to measure page load time and site navigation so they can identify how to make website performance improvements
• CSS 3 Text-Overflow: ellipsis: Additional way for developers to display CSS 3 text that overflows the layout area
• Telemetry: Install this add-on and opt-in to report browser performance data and help improve future versions of Firefox

• Optimized Memory Use: Reduces memory use and improves performance areas including responsiveness, startup and page load time, even in complex websites and Web apps
• Enhanced Firefox Sync: Your data syncs faster when a bookmark or password is added or changed
• Copy and paste: Copy and paste selected text from mobile websites
• Restored session history and tabs: Firefox restores browsing history and tabs so users can easily return to their previous browsing session
• Language selection: Firefox can detect the language setting on your Android device or allow you to select from more than 10 languages during initial set up

Also Mozilla announced that, every 6 weeks a new version of Firefox will released to obtain new technologies and testing new features quickly as possible. See the following image for release timeline.