Advice Request ESET users with Firefox Secure Connection Failed error

Please provide comments and solutions that are helpful to the author of this topic.


Thread author
Staff Member
Jan 14, 2015
Some firefox users might experience this error whenever they try to load a HTTPS website after either updating ESET/Installing ESET.
2020-09-04 21_29_15-Window.png

This is a known bug from years ago, dating back to at least 2017.

To resolve this close Firefox
Go to Setup
Click on Advanced Setup
Click on Web and Email
Click on SSL/TLS
Disable the first option: "Enable SSL/TLS Protocol Filtering"
Click on Web and Email again
Click on SSL/TLS again
Enable the first option: "Enable SSL/TLS Protocol Filtering"

This should now fix the issue.
2020-09-04 21_32_05-Window.png

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