I would recommend the following add-on to know which add-ons are incompatible with e10s: https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-re

I would recommend the following add-on to know which add-ons are incompatible with e10s: https://addons.mozilla.org/en-US/firefox/addon/add-on-compatibility-reporter/ https://addons.mozilla.org/en-US/firefox/addon/add-on-compat...