Firefox 7 implements Azure Direct2D for Canvas, too. That speeds up canvas-based animation rendering in HTML5.

There are also additions to help developers speed up how the browser reacts with their offerings. A Web timing spec allows developers to measure page load times and site navigation so they can boost their website's performance. And a CSS3 overflow function gives developers a way to display text that overflows the layout area on a page.

Mozilla has also improved synchronization of bookmarks and passwords in this release of the browser--synchronization is faster--and has introduced a telemetry add-on to help Mozilla gather browser data that can be used to improve future releases of the program.

Android Changes

As with the Firefox versions for other operating systems, the Android beta version of the browser has better memory optimization and synchronization, but it has a few other enhancements, too. Text can be copied and pasted from mobile websites, for instance, and a previous session's history and tabs will be restored on startup.