I'm using Opera 12 (later versions are based on Chrome) and it has been marvellous for keeping a bunch of tabs in place (21 at the moment) without using lots of memory.
For the last couple of days, I've suddenly hit memory problems with Opera, with it going up to 1.5gb or more instead of the expected few hundred k. Also, it has started opening tabs on top of but smaller than the previous tabbed screen.
Has anyone else seen this, or is there some button that I've pushed that has broken it?