I-Firefox Isithangami Sokwesekwa

I use Lightfolio.com for my website hosting. My computer does not let me login or load the website using Firefox. I've deleted the cookies, and played with the settings, and it still doesn't work. I'm really needing help as this is dampering my business.

daily mail website crashing right after opening..never had problems before

https://www.dailymail.co.uk/home/index.html