Until Brian has produced videos for Mac and Linux setup too, you can find written instructions here: https://developer.mozilla.org/en-US/docs/Simple_Firefox_bu

Until Brian has produced videos for Mac and Linux setup too, you can find written instructions here: https://developer.mozilla.org/en-US/docs/Simple_Firefox_build/Linux_and_MacOS_build_preparation https://developer.mozilla.org/en-US/docs/Simple_Firefox_buil... Setting up a Firefox development environment on Linux or Mac is actually quite a bit easier than on Windows. (For example, in most Linux distributions, you just need to check out the source code and then run "./mach bootstrap" to install the full set of tools and dependencies.)