[SnoopZ]

Originally Posted by gulf4uk

on the win 10 laptop i use Firefox and that latest update that still made
the security alert box come up Every link . i checked that Firefox was set
as full default and the prompt before opening a link was unchecked .
Chrome on this Suffered the Same problem .only cure was Rollback.

Have you tried a clean install of Windows 10 as that is very unusual to happen and on both browsers?