What are your thoughts on browser based mining?

I think browser based mining is a fairly new thing and I’m wondering what people think of it? I don’t want to plug any particular coin but I’ll point out browsercoin as a general example. For years it seems like there have been too many barriers preventing mass adoption but what if a browser based token automatically generates a wallet and you can mine at home or on a mobile device. Would this make crypto adoption easier for most people to enter and possibly stimulate use as a currency, whatever token that might be? I’m looking for meaningful discussion from folks who understand the tech better than me.