Hi, Fx 47.0beta1 is out, this time i'd focus testing on e10s (separate rendering process, cf https://wiki.mozilla.org/Electrolysis) - it's not enabled by default, you just need to create a new about:config pref 'browser.tabs.remove.force-enable' to true - restart firefox, and check the line 'Multiprocess Windows' in about:support.You should have two processes, working fine here. There is not ETA yet for the feature to be enabled in the release branch.
If someone wants on top of this to start looking at pledging the content process, have a look at https://wiki.mozilla.org/Security/Sandbox. https://cgit.rhaalovely.net/mozilla-firefox/?h=beta git clone -b beta https://rhaalovely.net/git/mozilla-firefox (if you dont have the signify key) doas ftp -o /etc/signify/landry-mozilla-pkg.pub https://rhaalovely.net/stuff/landry-mozilla-pkg.pub doas env PKG_PATH=https://rhaalovely.net/stuff/amd64/ pkg_add -u firefox Landry
