must log again every time I use x-notifier

I used x-notifier for a month with no problems.  I could have two hotmail accounts open at the same time.

When I would exit the account that the x-notifier is linked to, I could click on the tab with my other hotmail account

and go back to reading my mail.  Now, I have installed the latest Firefox browser and when x-notifier takes me to my other

email acccount to check mail, when I exit out of that account and try to use my original account I have to sign into my