First time i've ever seen this for web hosting hub. But FF is strongly warning me not to make an exception for the site. When I click on cpanel login under AMP it takes me to the site where i put my login info. Its not the pop up that I normally see. I put my info in and hit login and for a split second the site turns white and says "redirecting" at the top left corner. Then the warning from FF comes up. What's the issue and is there something I need to do to fix this? It concerns me because one of my sub-domains was flagged by google as a malicious site. (I posted about that and got a response saying there was no malware there and that it was probably removed with an update. Funny thing though I have not updated that particular site). However, with this issue now I'm a little leery of doing anything on any of my sites.... Please advise. Thanks.

EDIT
This happens on multiple computers.