Firefox thinks every site is an untrusted connection

[Mooncatt]

I just installed Firefox on my V20 to test out, and so far I'm not impressed. Every site I go to, I get this error. Eventually I was able to get Facebook to load (it didn't give the option to proceed anyway, like the Amazon screenshot), but that's the only site I've got to so far. Am I missing something? Is it really that badly programmed that you have to jump through these hoops for every site? My connection is secure on my mobile plan, and the sites work fine on Chrome.

 

[ManiacJoe]

FF 62.0.1 on my LG V30 is running great.
"https://amazon.com" should redirect to "https://www.amazon.com".

Do the "tech details" give anything useful?

The odd guess for this happening to lots of sites would be a problem with the cached root certificates that are used to verify the HTTPS certs.

 

[Mooncatt]

FF 62.0.1 on my LG V30 is running great.
"https://amazon.com" should redirect to "https://www.amazon.com".

Do the "tech details" give anything useful?

The odd guess for this happening to lots of sites would be a problem with the cached root certificates that are used to verify the HTTPS certs.

I'm running the same version. The tech details are blank; tapping them just changes the arrow position. I did try to manually type in the www version of the Amazon url with the same result as Facebook. I.e. All the same screen, minus the "I understand the risks" option to go anyway. And on a whim, I tried that option on the non-www version. When I select to visit the site, it does redirect properly but still with the aforementioned problem of the untrusted screen and no option to proceed.