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Comment by isodev | Hacker News Reader

Interesting overview, but also incomplete - Safari is missing from the list of options. uBlock origin is unavailable on Safari, even though iOS/macOS offer a very powerful content blocking API.

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> uBlock origin is unavailable on Safari, even though iOS/macOS offer a very powerful content blocking API.

Please define 'powerful'. Until pretty recently iOS was unable to block youtube ads. I'm still getting popunder ads even though I use a really comprehensive block list on my iPhone.

Safari blocking capabilities is just a "good enough" that most wont riot but definitely doesn't get even close to uBlock ballpark.

How many rules does the content blocking API support? 50,000? 100,000?

The last time I looked this was a problem because I currently have over 200,000 active rules.

Does it prevent CNAME shenanigans?

> Does it prevent CNAME shenanigans?

Yes. https://portswigger.net/daily-swig/amp/apples-safari-browser...

I don’t know… hence why it should have been included in the comparison.

Safari / webkit has some technical limitations. For uBlock Orgin on webkit, Orion is supposed to be the better alternative - https://browser.kagi.com/

Safari’s content blocking APIs are far from powerful. Content blockers provide the rules and safari blocks what it is told to. So you’re stuck with the (limited) features the browser exposes. Apple put limitations on what extensions can do, so uBlock would struggle on Mac and simply not work on mobile. Using its own engine (exactly the opposite of the Apple way), uBlock can handle the most complex websites and offer more features and customisation.

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