Dear Sir/Madam, The problem is only with certain pages of a site. It does not affect other pages of the site or other sites. Other browsers or PCs do not have this problem. Downgrading to 49.0.2 removes the problem from my computer. I use Windows 10 home (64 bit) edition. I tried to install 32-bit and 64-bit versions, 52.0 and 50.0 and none of them work on the specific page I am trying to open. You should be able to open it by following this link: https://harlandvoss.quickbase.com/db/bezp2k8w2?a=dbpage&pagename=Electronic%20Invoice%20New.html&clist=a&rid=10091 Thank you very much for your help. Kind regards, Arkady