No, I don't agree. The loss was net, I mean 50M users migrated, the same users that before installed FF over the default browser. Something happened there.

Can we blame Mozilla for losing some users? Yeah, maybe a few. But that’s not really the whole picture.

50M (and counting) was 20% of their user base, not "some users". There's nothing wrong in admitting that Mozilla erratic development model has alienated at least some of "us" (by the way, I've been a FF user for almost 20 years before leaving). And, personally, I'll make whatever I can to make more users leave FF. Fuck Mozilla, really. They're just a cash-grab machine right now.