https://wiki.mozilla.org/ReleaseEngineering/Merge_Duty (partially done) https://wiki.mozilla.org/ReleaseEngineering/How_To/Create_new_ESR_branch

For the next ESR, we'll probably need to graft the browser_parsable_css.js ASAN disabling as well (or fold it in with the branding change). https://hg.mozilla.org/releases/mozilla-esr52/rev/af75aa20f686 Also, when grafting the branding change from an older ESR release, can we please update the commit message to reflect the right bug # for the current release? i.e. Not pointing at the ESR38 tracking bug for the ESR52 branding change landing. https://hg.mozilla.org/releases/mozilla-esr52/rev/df0931ac8b02

https://wiki.mozilla.org/ReleaseEngineering/How_To/Create_new_ESR_branch https://github.com/mozilla/releasewarrior/blob/master/how-tos/new-esr-branch-setup.md