I think I've been hijacked. Insecure Connection.

[OregonBlue]

Can only go to a few websites. Get the message:
Your connection is being intercepted by a TLS proxy. Uninstall it if possible or configure your device to trust its root certificate. I keep being told that none of the sites certificates are valid? Any ideas?

[DonaldsRump]

1. Not an expert on this...

but take a look at the following: https://support.mozilla.org/en-US/questions/1223172]

[Dr Hobbitstein]

2. Check your virus scanner. Turn off live scanning of websites...

All that background scanning does not do much more than slow your computer down...

[earthshine]

3. Try a different browser, just to see if it works.

If you use Firefox, try Chrome, or vice versa.

Then, uninstall the bad browser, then reinstall it. Then try again.

Good luck.

[2naSalit]

4. That happened to me a while back

and it was a scam. I was directed to call my ISP and they directed me to load Kasperky which crashed my computer after a few days. Be very careful. I would take it to an expert someplace and see if they can identify what it is and what you should do about it. May have to get another computer?

[Renew Deal]

5. Are you on someone else's network like a work network?

Is it happening on all browsers on your computer? Is it happening on all devices on that network?

Also, check the date and time on your computer. It could be way off.

[OregonBlue]

6. I finally went to bleeping computer and found an article on checking TCP/IP Connection

certificate acceptance settings. Those had been changed by some hijacker so I changed them back and I was on the road again. Thanks to all.