Tonight all I did was swipe the screen to remove some smear from it, diagonally, not even horizontally, and the browser deleted all bookmarks from one of the sub-folders. That was in bookmarks menu. Just like that, no confirmation or anything. Horrible design, doubly so.
I don't suppose there's any possible way to restore this? From cloud backup? Or is an app backup the only way, and how specifically in that case would that be done with an individual bookmark folder... it sounds impossible. (Cause I don't have a very recent backup.)
For a 2nd issue; why I said doubly, Opera already did a fully unauthorized update of its version. Play Store is set to NOT do updates. It looks like not, but there's no way to get it to stop that, right?
Samsung Galaxy Core Prime (G360T), Android 5.1.1, Opera (for Android) 46.3