Re: Forks are a sign of success.
Indeed. While the article describes the forks as thriving (I'm sure they are in relative terms). I imagine they've got a fraction of the market share of Firefox. And I don't imagine they'd stifle the decline if they became the main Firefox release. Because most of what is happening to market share is not down to Firefox's decisions but down to Google and Apple and the shape of the market. And there's no magic exhaust port that can be used on those Death Stars.