Actually I have found a work around. Opera hasn't fixed this issue yet, and probably won't. Its a shame that Opera lies and says it supports Ubuntu 16.04, but in fact, it does not. Work around is located here at the bottom by kmod:
https://forums.opera.com/topic/41676/solved-missing-dependency/10.
Short answer is you have to rebuild the deb pkg citing version 3.18.9 instead of 3.19.12. I have personally done this with no effects on browsing so far.
Cheers!