And it'll apply black/white-listing in whichever way you configure it before actually getting data from any URL. Editing features are built into the browser.
To have it available on a more global scale, you could probably use something like squid proxy, but i don't know if it gives power quite like that.
URL-Blockers however are a thing that by all rights should be built into the core of any browser, just like number-black-listing should be a default feature of every phone (but isn't).
I do this directly on my router running Tomato firmware. The initial setup is a bit more involved, but it applies equally to all browsers and mobile devices in the home.
Ad blockers are more sophisticated than that these days, or at least support features that are. For example, they can hide a specific DOM element on a web page within a larger page according to its path or other characterization. I don't know what percentage of total effective rules these capabilities comprise, though, but it's something you cannot do with host level blocking alone.
You can give it a file like this: https://www.fanboy.co.nz/adblock/opera/urlfilter.ini
And it'll apply black/white-listing in whichever way you configure it before actually getting data from any URL. Editing features are built into the browser.
To have it available on a more global scale, you could probably use something like squid proxy, but i don't know if it gives power quite like that.
URL-Blockers however are a thing that by all rights should be built into the core of any browser, just like number-black-listing should be a default feature of every phone (but isn't).