Olá,

obrigado por entar em contato com o SUMO! quando você fala caindo, quer dizer que está dando crash ou algum outro error?

hi, unfortunately this crash may likely be caused by trusteer rapport which is running on your device and hooking into firefox - please check that you are fully updated there or temporarily disable/uninstall that software for the moment.

please also get in contact with trusteer's support which are usually very quick to respond and fix issues like this: https://trusteer.secure.force.com/PKB/articles/pt_BR/FAQ/browser-crashes