This is a 7+ only release. For use on stock Vista, please use the previous v126.0.2v release. They will be merged into a single release soon.
Previous release was stable, and 127.0 is officially out, so I guess that makes this a full release.
The portable builds are fully portable, the profile directory is inside the browser folder. It does not touch appdata at all.
Changes on top of the previous 127.0rc2 build:
GUI option to disable e10s.
Haven't tested on XP/Vista (extended kernel) nor have I stability tested. If you are using 7 RTM, you need to install the VC++ 2019/2022 redistributable, and copy the appropriate files from the r3dfox-7-RTM-fix.7z to the r3dfox installation directory, and it should work.
Please let me know what bugs or issues you encounter with it.