You should download the code today and try to build. https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Build_Instructions/Simple_Firefox_build/L

You should download the code today and try to build. https://developer.mozilla.org/en-US/docs/Mozilla/Developer_guide/Build_Instructions/Simple_Firefox_build/Linux_and_MacOS_build_preparation https://developer.mozilla.org/en-US/docs/Mozilla/Developer_g... It's just a ./mach build after checking out the code and running the bootstrap script.