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Firefox Has Quietly Integrated Brave's Adblock Engine
(itsfoss.com)
This is a most excellent place for technology news and articles.
Citation needed. When you hover over a video's progress bar, there is displayed a little graph showing something resembling a probability density function for timestamps users most frequently skip to. Advertisers can use this information to determine how likely a user is to sit through a sponsorship for a given channel.
Not that that matters. Don't feel like you need to watch ads. Advertising is bad in all its forms.