since last FF update there are several I can not get into because of secutity - Walmart, Amazon, and eBay. What is causing this?
I also see several other users that have similar problems and they all seemed to have started right after the last FF upgrade. Maybe you need to fix something real quick!
Wšě wotmołwy (3)
What happens when you try? Error messages?
I get a message that the certificate for the website is not valid.
I also am having problems with very slow response to most websites much of the time and FF often shuts down and then sends an apology and asks if I want to restart.
The restart usually corrects the shutdown problem, but only for a while.
There is security software like Avast, Kaspersky, BitDefender and ESET that intercept secure connections and send their own certificate.
https://support.mozilla.org/en-US/kb/firefox-cant-load-websites-other-browsers-can
https://support.mozilla.org/en-US/kb/firefox-and-other-browsers-cant-load-websites
https://support.mozilla.org/en-US/kb/secure-connection-failed-error-message
https://support.mozilla.org/en-US/kb/connection-untrusted-error-message