SSL_ERROR_RX_RECORD_TOO_LONG in Firefox

[Draven666]

Hi,

Ok, I use a transparent proxy (Squid+SquidGuard) to filter HTTP and HTTPS (yeah, I know, don't start this debate…) and it's working quite well except that when I go to a blocked HTTP site, my redirect error page is displayed but when I go to a blocked HTTPS site, Microsoft Edge just doesn't work and Firefox display an error SSL_ERROR_RX_RECORD_TOO_LONG.

Any help would be greatly appreciated.

Thank you.