I get a message of no reliable connection on all Web sites

I get the "connection is not reliable" ((Web site) uses an invalid security certificate) message on all pages I try to visit.

Thank you for following it upwards. Unfortunately, certificates of do_not_trust could be a sign of unwanted software on your pc that is to intercept the secure network traffic. go to the system control panel and uninstall programs such as BrowserSafeguard, BrowserSafe, backup or other software that seems suspicious and did not get intentionally installed by you.
Reference: https://support.mozilla.org/en-US/questions/982532#answer-520145

afterwards, run a full scan of your system with security tools like the free version of malwarebytes & adwcleaner.

Fix Firefox problems caused by malicious software

Tags: Firefox

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