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I noticed that I get a "This Connection is Untrusted" error in Firefox. I use KIS 2015. I reseted Firefox. Pls advise

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I've just installed the latest version of KIS and now I"ve noticed that I get a "This Connection is Untrusted" error in Firefox whenever I try to go to either of those websites. I reseted Firefox. I am unable to open anything through firefox-- my yahoo mail, google accounts, search through google, etc. Any suggestions on how to get firefox to work?

I've just installed the latest version of KIS and now I"ve noticed that I get a "This Connection is Untrusted" error in Firefox whenever I try to go to either of those websites. I reseted Firefox. I am unable to open anything through firefox-- my yahoo mail, google accounts, search through google, etc. Any suggestions on how to get firefox to work?

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