Have you tried with addons disabled? Your experience with E10s largely revolves around which addons you're using. Some addons use compatibility shims with mult

Have you tried with addons disabled? Your experience with E10s largely revolves around which addons you're using. Some addons use compatibility shims with multi-process and this can significantly harm performance in some cases (even potentially making it worse than e10s disabled). This site is useful regarding the addon compatibility: http://arewee10syet.com/ http://arewee10syet.com/