Once the download has completed, the file (Firefox.dmg) may open by itself and pop open a Finder window containing the Firefox application.Note: If you want to have a choice of the language for your Firefox installation, click the Download options and other languages link instead.It will automatically detect the platform and language on your computer and recommend the best version of Firefox for you. Visit the Firefox download page in any browser (for example, Safari).Firefox 84 and higher versions will run natively (not under emulation).
Firefox 83 runs on new Apple Silicon devices by way of Apple's Rosetta 2 emulation software and thus performance speeds may suffer. Note: Firefox version 83 and higher support both Intel-based Macs (x86 architecture) and Apple devices with the new ARM-based CPU ( Apple Silicon).