Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
What type of account is it specifically that you are inquiring about.
An adobe account? Some other account? Please specify what website or company t he account is with so that I can help you.
Also, when you say the browser is not working, are you able to access the internet on your computer at all?