Comment by xbmcuser

It was not as good as chrome for most of that decade in performance or security. Google was able to use it search market share to advertise its browser but because it was better many people moved off firefox. 2nd reason is chrome used to auto update in the background so I used to install it on all the pcs of all the non tech people I used to be tech support for as that helped me a lot of daily headaches in term of computer troubleshooting