I use it for what little mobile browsing I do. I like Firefox over the standard android browser personally, but I really don't do much more than google searches on my phone. I have tried to watch videos before and Firefox does automatically download the video to your phone rather than open it, but I personally prefer that. IT makes the video available to watch offline and without the stop/start and lag that can happen when streaming over slow connections...
I use TapaTalk to get on bp.net from my phone...