I always have used the ESR versions of Fx for many years because of their stability and changes occur once a year not every month or so. Fx ESR is my default browser.
Suddenly, I cannot navigate “ghacks.net” on Fx 91.11.0 ESR. I get a ridiculous “checking your browser” page and Fx gets stuck there.
If I switch to Basilisk browser forked off Fx (with support having ended earlier this year), I can navigate at ghacks website just fine.
Irritating.