Comment by mdaniel

https://github.com/Floorp-Projects/Floorp-core [a submodule of their main repo] is noticeably missing any licensing information

I went there to find out how they're tracking upstream releases, because that's my major heartburn about any fork of one of the biggest attack targets on a personal computer. Since 12.0.14 doesn't tell me anything about what version of Firefox it's built against, I guess https://github.com/Floorp-Projects/Floorp/blob/v12.0.14/brow... is the best one can do and since it says 128.anything and the current production release is 140.0.4 I got my answer