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Firefox is on the brink of being dropped by the US Government
(www.brycewray.com)
This is a most excellent place for technology news and articles.
I once saw stats from a 2015 study that said 40% of people on the internet used ad blockers. Who knows how that's changed since then, but as somebody else said, the majority of people who don't probably don't even know that you can block ads, otherwise they'd probably be using it.
That's much much higher than I would have expected.
Agreed, I expected it to be 10% or less. I was very surprised.