On: Firefox beta supports Apple silicon natively

[wmf]

It means they recompiled Firefox for macOS/ARM64.

[alwillis → wmf]

Correct. Just installed it on my Intel Mac running Big Sur (had to put it in my home directory; I already had non-beta Firefox in /Applications):

    file ~/Applications/Firefox.app/Contents/MacOS/firefox-bin   

    ~/Applications/Firefox.app/Contents/MacOS/firefox-bin: Mach-O universal binary with 2 architectures: [x86_64:Mach-O 64-bit executable x86_64] [arm64:Mach-O 64-bit executable arm64]

    ~/Applications/Firefox.app/Contents/MacOS/firefox-bin (for architecture x86_64): Mach-O 64-bit executable x86_64

    ~/Applications/Firefox.app/Contents/MacOS/firefox-bin (for architecture arm64): Mach-O 64-bit executable arm64