5 years is ago is when the mentioned adblocking was added. Enterprise use is different because people normally don't have influence over that, but home use is actually their real choice.
Desktop, because ff mobile didn't really exist yet, so mobile segment is not really relevant for comparison.
Depends on what you mean by "because of". Adblocking became really popular with the adblock extension. When it was released it was a FF extension, because other browsers didn't really have the same functionality / ecosystem available. So in a sense Mozilla enabled adblock to become popular and something that people know about/want. I'm sure Apple didn't say "FF had it so we have to". Instead, Mozilla/FF enabled the ecosystem years ago, where adblocking became both possible and popular, leading to inclusion in iOS.
Apple’s method of ad blocking - having a JSON file that gives the browser engine rules is relatively browser intensive - at least in regards to what mobile processors could do during the iOS 8 era. Apple didn’t even support it on 32 bit phones that did run iOS 8.
Apple could have only shipped it two years sooner for iOS. iOS 8 was the second version of iOS that supported 64 bit processor.
Apple didn’t just come up with the idea of ad blocking because of Firefox. Apple couldn’t implement the form of ad blocking that Safari uses on its mobile processors and still keep Safari performant before the iOS 8/iPhone 6 era. You could tell the performance difference on the iPhone 5s (the first 64 bit iPhone). They didn’t even support it on 32 bit phones.
