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 Developer, 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 Developer 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 61 is now in the Beta channel. New features include:

- Performance Enhancements
- On-by-default support for the latest draft of the TLS 1.3 specification
- Various improvements for dark theme support will provide a more consistent experience across the entire Firefox UI
- Added the ability to share current the URL with MacOS sharing providers from the Page Actions menu
- OpenSearch plugins offered by web pages can now be added from the page action menu for easier installation
- Improved support for allowing WebExtensions to manage and hide tabs


Check out the next version of Firefox before it's released.