Opera? Then there's the usual legal and not so legal methods I've personally blocked the ad server in much the same way I block normal ad servers though, so I just see a static placeholder instead, which is a Buy Opera 5.12 Now image, which is far less annoying. If that's really Firebird though (whih I don't want to believe it is, honest ), then I'll have to say What the heck is it doing with ads when it's opensource? If that's the case, I'm not getting it and will stick to Mozilla