I’m not overthinking. It is what it is. You can’t donate directly to impulse FF development. But you may buy subscriptions to Pocket/Relay or Mozilla VPN.

That said, I frankly don’t know what Mozilla is up these days, nor I am interested in their survival. As far as I am concerned, they could disappear today and my life wouldn’t change a single bit. I’d prefer to donate money to really useful ORGs on the likes of archive, wikipedia, OSM, Arch Linux, EFF and so on. Today’s Mozilla is just a cash-grab mismanaged scam.

https://lunduke.locals.com/post/4387539/firefox-money-investigating-the-bizarre-finances-of-mozilla