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I'm having trouble with Mozilla blocking 80% of the sites I try to use in the name of "insecure connection". There has to be a better balance.

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Mikaila
Mikaila
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Mozilla blocks about 80% of the sites I'm trying to visit. It's become practically unusable as a browser. There has to be a better balance between security and ease of use. Please make Mozilla more user friendly and allow access to such sites - for example even the Arlington County government web sites are listed as "insecure". Please allow me to easily loosen the security requirements.

Mozilla blocks about 80% of the sites I'm trying to visit. It's become practically unusable as a browser. There has to be a better balance between security and ease of use. Please make Mozilla more user friendly and allow access to such sites - for example even the Arlington County government web sites are listed as "insecure". Please allow me to easily loosen the security requirements.

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John99
John99
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Hi Mikaila, The usual reason for this issue is that third party security software is fighting with Firefox and needs to be set up correctly.

Some security software intercepts your browsing, puts its own certificate in place, and Firefox interprets that as an attack or eavesdropping and alerts you to the connection being insecure.

Please see

  1. How to troubleshoot security error codes on secure websites
  2. What do the security warning codes mean?
    How do I tell if my connection to a website is secure?

The first article has instructions relating to fixes when using popular security software, you should read that article even if you do not immediately see the error mentioned in the article's title.

Please post back to say how you get on.

If problems continue please click on the blue text within the SEC_ERROR_UNKNOWN_ISSUER box that appears for problem sites and paste that in to your next reply.

James
James
  • Top 25 Contributor
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Neither Mozilla or the Firefox web browser is doing the blocking.

Besides the antivirus, a more simpler cause can be due to incorrect date/time set on the OS.

cor-el
cor-el
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  • Top 10 Contributor
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You can create a new profile to test if your current profile is causing the problem.

See "Creating a profile":

If the new profile works then you can transfer files from a previously used profile to the new profile, but be cautious not to copy corrupted files to avoid carrying over problems.