If I make an entry in /etc/hosts for a site, Firefox (v125.0.3) refuses to load the site. I’m running macOS 14.4.1 (Sonoma).
The entry in the /etc/hosts file is:
93.184.215.14 example.com www.example.com
I’ve read the answers provided in this Stack Overflow post.
At first, Firefox was completely ignoring my hosts file. Now that I’ve turned off “DNS over HTTPS” I am getting the “Unable to connect” page.
The network tab reveals:
NS_ERROR_CONNECTION_REFUSED
And under timings:
Request Timing
Blocked: 39 ms
If I remove the /etc/hosts entry the page loads normally. Also, both Chrome and Safari are working fine and respecting my hosts entry.
I’ve also looked at about:networking#dns which does seem to show the correct IP address. It’s almost as if Firefox is blocking an attempt to load any endpoint where DNS is overridden.
