Why does Facebook not open on Safari?

Greetings debdebal,

Test after disabling any Safari extensions that are enabled, and after testing with a private window. You can see those suggestions outlined here: If Safari on Mac isn't opening a web page or working as expected - Apple Support

"Even if your Safari extensions are up to date, temporarily turn them off to make sure they aren't affecting Safari in unexpected ways. Choose Safari > Preferences, then click Extensions. To turn off an extension, deselect its tickbox."

Kind regards.

Hi debdebal,

Thanks for following up and providing the steps you took to resolve the issue!

Cheers.