Firefox will not load https pages. gives the security warning and will not accept an exception.

I had problems with Firefox and some sites for about a year, and it is located in my laptop. I have no problems when using my desktop at work or my dad's cell phone in his house. Some sites simply returns a page of text style; no html. Other sites give me a security certificate warning and FF will not accept an exception for this site, either by clicking the button or manually enter the site as an exception. Tonight, GOOGLE will not load again! Why, it's trying to load on an https server, I don't know, however. Several other sites have also begun does not not and are also trying to load it on a secure server.

Use Kaspersky, AVAST 2015, ESET, BitDefender or Microsoft family safety? These are among the most popular security programs which have a function to intercept your Internet connections and filter your traffic. When it's a secure site, in order to be able to decrypt and inspect your communications, the software must present a false certificate for Firefox. Sometimes, the software is not able to configure Firefox for this, or if you use the function of Reset of Firefox, the trust is broken and needs to be put in place again.

Unfortunately, the same symptoms can appear with some malicious software.

If you look at the second half of the post of Philipp, you see where you can check the section 'From' the certificate. This usually allows to identify the culprit. Can you take a look and report what you find?

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