Roffen Posted February 3, 2019 Posted February 3, 2019 XP machine, message: "Your connection is not secure... This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox may only connect to it securely. As a result it is not possible to add an exception for this certificate." What, if anything, can I do?
Mcinwwl Posted February 3, 2019 Posted February 3, 2019 1. Which version of Firefox do you use? 2. Which website do you refer to? 3. do you install POSReady 2009 updates or not?
dencorso Posted February 4, 2019 Posted February 4, 2019 Looks like problems with antivirus software or a missing certificate. This report does not refer to XP but may be enlightening nonetheless: https://www.bleepingcomputer.com/news/software/mozilla-halts-firefox-65-rollout-due-to-insecure-certificate-errors/
RED-CHAMBER Posted February 6, 2019 Posted February 6, 2019 (edited) I was plagued with those messages until in my antivirus, in network configuration, specified not to analyze the encrypted connections. Edited February 6, 2019 by RED-CHAMBER
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