This problem still exists and is still annoying. Any chance to revert to pre-53 behavoiur via a flag? Or per extension via a checkbox on extensions page?

40.0.2296.0 is unusable for me. Every tab crashes (even settings, about, etc), every time. Win 7 x64

Same here. Even with clean profile (Win 10x64. Both opera 64 and 32 bit versions)