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YouTube's next move might make it virtually impossible to block ads
(www.androidpolice.com)
This is a most excellent place for technology news and articles.
That assumes every ad is exactly the same (or at least the same length) and at the same spot for every user.
yeah, I realized it after posting. I don't see ads, I use it to block sponsored stuff and forgot about injected ads. still a great plugin.
Pre roll and post roll ads would be pretty easy to detect since the length of the actual video is fixed. Mid roll ads though will need something more clever.