Note: I have no idea why Mozilla bumped the version to 125.0.2 with no functional difference in the stable repo. This is the exact same as 125.0.1.
I finally have a 125 release that I consider stable and complete enough to make a proper release for. This means it also includes an x86 build and now portable builds. The portable builds don't have any external executables or anything weird. They're just portable with the profile in the browser folder. You can also turn the installer version portable by adding pmprt.mod in r3dfox\browser if you wish too. The portable builds are just packaged as a .7z with that file already there.
Changes on top of the previous 125rc builds:
Settings menus finally are colored right, you can read them now.
about:config warning and extension signature checking disabled by default.
Haven't tested on XP/Vista (extended kernel) nor have I stability tested.
Please let me know what bugs or issues you encounter with it.