This is weird. I have a  client's website which we recently moved hosting on. Screwed up the change of nameservers and the website was briefly down. It's now  back up - the nameservers have resolved - BUT ONLY on Firefox the  home page redirects to an account suspended page (which is what the former host puts up when you don't pay your account). 

So the website is up and running - on Chrome/IE/Safari on both Windows 10 and Mac - but on both Firefox the home page ONLY has this autoredirect on Firefox 

I've cleared caches - and using my VPN I can still see the problem on Firefox. 

It's only the home page - other pages work fine - but as soon as you go back to the "home" this suspended page shows up! 

Any ideas - google is failing me - the page is http://margotunlimited.com/