Logging into Website on new MacbookPro (2019)

cousinvinny1 wrote:

Ever since getting a new macbook and transitioning over from my 2015 model, I can no longer log into several sites via Firefox or Safari.

They work on my phone and other computers (even my iPad), but not on the newer Macbook Pro and this is causing so many issues. Why is this happening???

Can you give at least one example of a website you can no longer log into?

To trouble shoot further you can:

—A SafeBoot Use safe mode on your Mac - Apple Support will sort many anomalies

Does a quick disk repair before it fully boots up, and certain system caches get cleared and rebuilt, third party system modifications and system accelerations are disabled temporarily.

Login and test. Reboot as normal and test. Caches get rebuilt automatically.

This test will tell you if third party interference; most extensions etc are not loaded in safe boot mode.

—Test issue in another user (or guest user) account Change Users & Groups settings on Mac - Apple Support

This will tell you if it a universal issue or isolated to your user/admin account. 

unplug all non-essential peripherals when testing

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

What exactly do you mean? Does an error message appear? Or does it just not go past the login screen?

... please tell us about the details to help you