Unable to log in password vault using Firefox

Is everyone facing the same issues as I am, that recently (last week or so not 100% sure) I am unable to log in to my Norton password vault using Firefox?

I have tried on a couple of PCs:

On one PC it throws up an error message box from Norton saying "Sorry, something went wrong. Please try again" Doesn't even get to the login page.

On the other PC it goes to the vault login page but on entering my password and attempting to log in, it just sits at "validating password" forever.