OK. When I read your question, I had a look in the settings.

under my settings, preferences, display

I have ticked display menus dynamically with mouse over, then save changes

my bubbles have now gone, on an iPad using Chrome.

no idea if that will work for anyone else...or why it should have worked...because to me it shouldn't, but changed it back and have bubbles again.

I have a sneaking suspicion, that is a bug and won't work for everyone