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It's great for lots of sites, as you're able to skip about half of the ads this way. But on your own site, it's probably something to avoid when possible. Without the icons, there's not much to click on.
I have no idea if other browsers offer this option, but I suspect it will become more popular in the future as ad density increases.
Generally, I prefer hosting as much of my site on my servers as possible (which is 100% in most cases). Not only do you avoid problems like those already mentioned, but if something goes wrong, you know exactly where to look to fix it.