Firefox logout issue

Hello Community,

I am looking after several DNSMATIC accounts and noticed a issue in Firefox with the logout procedure.

When I try login into account two after login out of account one. I still end back in account one. I have also tried cleaning the cookies with the addon 'Cookie AutoDelete 3.5.1' and go around in circles.

For now the only solutions is use several different browsers which is really silly.

Is anybody else experiencing the same issue ?