It may not address the underlying issues with ad-based revenue for websites but at least for performance, it does make a big difference. Adblocking extensions

It may not address the underlying issues with ad-based revenue for websites but at least for performance, it does make a big difference. Adblocking extensions have been available on other platforms for a while now and they're one of the main reasons I use Firefox as my primary mobile browser (albeit on Android instead of iOS). I can install the same Adblock Plus/Edge/etc. as the desktop version and immediately my little 5" screen is less cluttered, sites load faster, and I use less of my metered data plan. Mobile web browsing without an ad blocker is miserable compared to the same thing on desktop. At least on the desktop you've probably got 1920x1080 or 2560x1440 screens, more processing power, more RAM, and a connection that offers more than 5GB of data each month. With mobile it's unbearable.