I manually forced e10s on Firefox 50 (50.0.2+build1-0ubuntu0.16.04.1), and used it more than one week without noticeable issue. So maybe the "Ubuntu modifications" extension is e10s-compatible, but simply not marked as such?
I manually forced e10s on Firefox 50 (50.0.2+ build1- 0ubuntu0. 16.04.1) , and used it more than one week without noticeable issue.
So maybe the "Ubuntu modifications" extension is e10s-compatible, but simply not marked as such?