Improved timing information for Firefox IPC message profiling now available

Recently, I landed some improvements to IPC profiling support for Firefox: we're now able to collect timings for each "phase" of an IPC message as it travels from the sender to its recipient. Now, rather than just recording the start and end time, we also record when we begin/end sending bytes on

Re: Proposal: remove support for running desktop Firefox in single-process mode (e10s disabled) anywhere but in tests

Since there were no further concerns voiced to the final proposal I've gone ahead and landed the change in https://bugzilla.mozilla.org/show_bug.cgi?id=1653384. To be respected you must now set the MOZ_FORCE_DISABLE_E10S environment variable to the full application version. `mach run

Firefox Security Newsletter - Q2 2020

Hello fellow Mozillians, Here comes our third edition of the Firefox Security & Privacy Newsletter. The shareable link for this newsletter is (References are in footnotes at the bottom, due to the text-only mailing list. You can