Earlier quoted context omitted.
Hey, if you want every browser to be identical, that's your right. I happen to think that competition among browsers is a good thing, and that means that they'll always be at least a little bit different. Shouldn't it matter which browser you use? No major browser vendor (in the modern era, at least) wants to break interoperability -- that's the bright line that separates innovation from fragmentation -- and you'll f…
> Shouldn't it matter which browser you use? Yes, in terms of performance, user interface preferences, features like bookmark syncing, and so on. But visiting any page should work in any browser. If proprietary extensions get used, then the pages are no longer able to interoperate. You now have a proprietary ecosystem. If these proprietary extensions catch on, now you're back to the bad old "best viewed in IE6" days.
People don't sit back, put their needs on hold, and wait for the web platform to develop and implement new standards. They use available tools. Would you advise them to leave the web ecosystem entirely? Or use the lesser evil of extensions platforms, thereby solving their urgent problems and indirectly providing long-term direction to the web platform's evolution?