Reproducible builds

Hi, Two recent comments on the Linux reproducible build bug thread [1] suggest that the bug has no clear end goal. In this email, I'll try to describe what I understand of the problem and discuss the outline of a possible end goal. I felt that the topic covers a wide enough range of

Added --disable-e10s to mach run

Hi, In bug 1287069 (https://bugzil.la/1287069), I just landed a new command line argument, --disable-e10s, to |mach run|. As its name indicates, it would run the program with e10s disabled. This argument is effectively identical to setting pref "browser.tabs.remote.force-disable" to true, but as