Jolla also inherits all the problems associated with desktop Linux and it would also have most of the same problems that Android does (fragmentation, upgrade cycle, etc...).
I like the Firefox OS concept because it has a better chance at being popular amongst non-technical folks and because, even if it had like 5% of the market share and no more, even so it would bring benefits to everybody, including developers, including end-users - because those Web APIs are also pushed by Mozilla for standardization.
What are those problems inherited from desktop Linux? I don't like the concept of limited systems like Firefox OS (for me personally) since I prefer more flexible and feature rich systems, but I see nothing wrong with them in general, they can be useful in some cases.
The discussion above was about the huge geek appeal, not about the general appeal. That's why I answered that Jolla has a better geek appeal. Although they work hard to address the general public needs as well, in order not to make their system targeted to the tech crowd only.
I like the Firefox OS concept because it has a better chance at being popular amongst non-technical folks and because, even if it had like 5% of the market share and no more, even so it would bring benefits to everybody, including developers, including end-users - because those Web APIs are also pushed by Mozilla for standardization.