[OJFord]

Some not very technical reasons:

1) Run once, use everywhere. (Including devices without a browser, like an Android/Apple/'smart' TV.)

2) iPhones.

3) Configure alongside rest of networking, not clicking buttons to manually sync within browsers of the same type.

[kohtatsu]

iPhones can run DNS blockers locally[1], and Apple has a good API for privacy-preserving content blocking[2].

[1] https://apps.apple.com/ca/app/dnscloak-secure-dns-client/id1...

[2] https://developer.apple.com/documentation/safariservices/cre...

[OJFord]

Sure, but that's not (or equivalent to) AdBlock Plus, which is what I was replying to.

Specifically, iPhones cannot do in-browser content or domain blocking if the browser is not Safari.

[kohtatsu]

https://developer.apple.com/videos/play/wwdc2017/220/

https://github.com/ShingoFukuyama/AdsBlock_WKWebView_for_iOS...