Firefox 57.0.4 (64-bit) under Linux Mint 18.3 Prior to Jan 21, no problem encountered then on 21st Jan, get message "Your tab just crashed" while trying to reach "https://www.bonprix-wa.be/". The page is displayed and images are loaded. Keep loading then suddenly, it crashes. The same occured with "https://www.renaissancecss.com/?ref=webdesignernews.com". (First 'faulty' site has been accessed succesfully in the week prior to Jan 21) When those are the only two opened tabs, Firefox completely crashes (window disappears) Same occurs in Safe Mode and after Refresh. No crash report generated Before somebody asks, I didn't change any settings of Firefox prior to troubles ...