Alternatively, you can install Rosetta by running the softwareupdate install-rosetta agree-to-license command in Terminal. Thanks a lot for this! Is there going to be a native arm64 or 'universal' build for FileZilla, you think? I can't believe Universal came back to the lexicon PPC -> Intel and now Intel -> aarch64 LOL. To install Rosetta on Mac M1, just launch an app that requires the emulation to run on M1 Mac and select Install on the Rosetta 2 installation prompt that shows up. Usual caveats with untested builds applies, I don't promise this won't set your dog on fire and turn the sun into a black hole or cause diabetes, etc. If you don't want to bother with all that, I uploaded the version I made here (using itself, of course): I had to do that with libidn.12.dylib, libfilezilla.12.dylib, and libwx_osx_cocoau_adv-3.0.0.5.0.dylib. All you have to do to work around it is copy the file that's causing it to crash to another directory, sign it there, delete the original file, and then move the signed copy back in. Built with no issues at all, the only tricky bit was working around an extremely annoying code signing bug (it's happened to me before) which will cause codesign_allocate to crash. Out of curiosity I tried making an arm64 build of FileZilla myself and it works perfectly fine using homebrew for the dependencies (except for libfilezilla of course) and the latest svn trunk source code.

Filezilla for mac m1