I don't know on OS X but on iOS while Mobile Safari is quite good, it lacks one mandatory feature: a way to install extensions or at least a way to install Adbl

I don't know on OS X but on iOS while Mobile Safari is quite good, it lacks one mandatory feature: a way to install extensions or at least a way to install Adblock. I find myself using less and less my iPad (last generation with A7) for a single reason: because how much web sites are actually cluttered with pop-ups, ad banners, and modal sheets masking contents. This has a serious impact on loading times and on usability, this is maddening. This is becoming a serious problem aggravated by the fact developers of these websites / ad networks know very well there is actually no mainstream way of bypassing this garbage on iOS and thus they abuse their situation. Apple needs to do something to restore a balance. I won't hold my breadth though, but long term as it drives more people nuts I think it will become a serious issue.