Firefox Beta is the build for those who like a little bit of jeopardy, but who don’t want to risk everything by trying out Firefox Aurora, the early alpha build of Firefox. Firefox Beta gives you a sneak peek at the next version of Firefox six weeks ahead of its final release, offering a relatively stable build that’s not quite ready for primetime, but still pretty solid.
Whereas Firefox Aurora installs as a completely separate application alongside your existing Firefox installation, Firebox Beta will replace the stable build. Should you subsequently wish to go back to the safer version, you’ll need to manually download the stable version and install it over the top of the beta build.
Confirm which build you have by selecting About Firefox from the Firefox menu or button (it’s inside the Help menu if using the Firefox button).
Firefox 34 is now in the Beta channel. New features include:
- Firefox Hello real-time communication client
- Easily switch themes/personas directly in the Customizing mode
- Built-in support for H264 (MP4) on Mac OS X Leopard (10.6) and newer through native APIs
- Wikipedia search now uses HTTPS for secure searching
- Non-intrusive way to set Firefox as default browser
- Implementation of HTTP/2 (draft14) and ALPN
- Recover from a locked Firefox process in the "Firefox is already running" dialog on Windows