Hi Jeffrey and than you for the info ! As per additional info you provided, I’ve enabled the HTTP/3 protocol experimental support and started to check each setting you mentioned in the about:support snippet. What I’ve found is that this preference `security.ssl3.rsa_aes_256_sha` when set to `false` while the HTTP/3 protocol is enabled will cause the connection error on www.ic3.gov . However, YouTube and https://www12.9anime.to/ remained unaffected, being able to access them without issues. Maybe, in your particular case, that reverting the above preference to true will solve the issue.
Bug 1686362 Comment 6 Edit History
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Hi Jeffrey and thank you for the info ! As per additional info you provided, I’ve enabled the HTTP/3 protocol experimental support and started to check each setting you mentioned in the about:support snippet. What I’ve found is that this preference `security.ssl3.rsa_aes_256_sha` when set to `false` while the HTTP/3 protocol is enabled will cause the connection error on www.ic3.gov . However, YouTube and https://www12.9anime.to/ remained unaffected, being able to access them without issues. Maybe, in your particular case, that reverting the above preference to true will solve the issue.