Version 71.0a1, first offered to Nightly channel users on September 2, 2019
Firefox Nightly gets updated every day and as a consequence, the release notes for the Nightly channel are updated continuously to reflect features that have reached sufficient maturity to benefit from community feedback and bug reports.
Warning: Features listed here may or may not make a final release of Firefox.
In addition to these release notes, you can follow ongoing development on our @FirefoxNightly Twitter account as well as read our Nightly Blog.
Passwords can be imported from Chrome on macOS in addition to existing support for Windows
Subgrid greatly enhances the utility and flexibility of grid layouts by allowing the grid of a child to use the tracks defined on the parent. In addition, the DevTools grid inspector has been improved to support subgrid.