hi the new update firefox 19.0 isnt working on my phone model : motorola razr xt910 android: 4.0.2 I do not have developer options enabled. when I updated my firefox, the homepage is simply a white screen. it doesn't show my history or bookmarks. if i try to type address manually firefox hangs and stops responding to the point that my phone crashes and restarts. I reverted to firefox 18.0 which solved the issue. another issue with firefox from beginning is that it takes a long time to load my bookmarks and history list. sometimes it takes as long as 1-2mins. its not a performance issue with my phone as default browser works as fast as always and my phone is not overloaded or have memory issues. already checked for those. I do clear my cache regularly, yes. some troubleshooting for both would be great.