[mort96]

I agree. I chose to focus about stable because that's where Debian "does all the tests" for its packages. I just threw in testing because it happened to have the same version of Firefox, but maybe that muddied the waters a bit.

The fact that the latest Firefox is in rolling release distros/channels but not in stable ones does prove the point a bit; you can either get a new Firefox, or you can get a tested Firefox. I generally prefer rolling releases, but I've had Firefox break in weird ways on Arch from time to time. The only way to get a Firefox that's both well-tested and up to date is to use builds from Mozilla where libraries are bundled, such as with a snap or flatpak.