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how can a site go from secure connection to not secure connection in three days, ie: tricare online. I did not change any settings on my computer or firefox, wh

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I get a not secure connection on websites that had secure connections on fri, I made no changes to firefox or my computer. Now I can't log in to theses sites, I need to have access to these sites.

I get a not secure connection on websites that had secure connections on fri, I made no changes to firefox or my computer. Now I can't log in to theses sites, I need to have access to these sites.

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Hi.

What is the exact error message if you get an error page (SEC_ERROR_UNKNOWN_ISSUER?) or do you merely get a special padlock on the location/address bar?

Can you attach a screenshot?