Web Proxy Stops Outbound Traffic at First Attempt

[baqwas]

Hello,

I didn't find anyone else reporting a beginner issue on running Web Proxy for the first time so I need your help to determine my basic configuration error.

I setup Caching Proxy https://docs.opnsense.org/manual/how-tos/cachingproxy.html with the instructions in the official documentation using the Yoyo Ads Blacklist example. I setup Firewall Rule No Proxy Bypass (screenshot attached) - again using the official document. I did not encounter any issue in making these changes.

I enabled proxy use in Mozilla exactly as illustrated in the official documentation but with the specific address for OPNsense in my farm.

Unfortunately, I cannot go out to the Internet using the browser when the Web Proxy is enabled. Presumably, there is configuration issue at my end because if I unblock the two rules (HTTP/HTTPS) the browser can go out again. I am unsure about the rules changes that I have entered but obviously these rules when activated are disabling Internet access.

How can I fix this basic issue to become productive with Web Proxy? Thanks.

Regards.