I don't know any Pocket users either, but then again I don't know any Firefox users at all these days. Brave seems to have much better traction among the sorts who were, until recently, Firefox fans. I ditched FF on all my serious-business machines because it ate battery on my Macbook(s) and had some persistent-across-versions lack of UI polish that started bothering me after I'd seen the same things done right. Still use it on my Windows gaming/piracy/nothing-serious machine (which has no battery to preserve) since Safari won't run there, but if someone came in and swapped it with almost anything except Chrome or Edge, I'd likely not bother to change it back. And I was one of those people installing it on every person's machine who'd let me, before it was even called Firefox.