I use browser sync in a project. The site reloads in a few seconds in multi-process browsers, but takes about 40 seconds in Firefox (and shuts down the browser

I use browser sync in a project. The site reloads in a few seconds in multi-process browsers, but takes about 40 seconds in Firefox (and shuts down the browser in the process). E10s hasn't helped much yet, so I don't think I can go back until perf improves. I did love everything else about it, and I still check it out every now and then.