Hi, all at once my two browsers (Safari and Firefox) cannot access anymore several http websites that I usually access, for instance http://modernherbal.trade/index.php
Yet some other http sites get loaded correctly (showing “Not Secure” in the bar).
The only unusual things I did a couple of days ago were to install zoom.us app (by now removed) and reset my Mac with PRAM because the internal microphone would not show in System Preferences > Sound Input. But even after that I could access http websites. Now Safari & Firefox, after a certain time, say that such sites do not respond.
I restarted my MBP several times and run DiskDoctor too, but nothing happened.
By the way: running the last Catalina (updated months ago).
Is it safe to copy/paste my previous user library from my backup external disk?
Any suggestion most welcome. Thank you.