I don't think it's so much that they don't have ideas it's that they're competing with Alphabet's Chrome, who are coincidentally owners of Android, Gmail, YouTube and Google which are internet keystones. I think it's solely by coincidence that I use Firefox rather than Chrome and if I'd started using the Internet a few years later it would have been Chrome.

Also isn't a huge proportion of internet activity mobile users, and outside the US the majority of phones are Android, and most people leave things default, thus Firefox is condemned have a minor share essentially since Chrome is packaged natively with Android?

Anyways I hope they can dislodge some of the Google train. I abhor using Gmail. Better yet if they can compete with Outlook to some extent. Mozilla actually produces software I trust enough, which has enough utility that I'll install it.