Is it possible to restrict firefox to make sure it can send requests to only one specific IP (or domain, but preferably IP) using only user_pref directives ? Using an extension like BlockSite does not block an XHR to a blocked domain for example. I am looking for a solution that totally restricts outgoing requests to a given whitelist.
1 Answers
it is not possible to do this without an addon,
so either you have to rebuild firefox from source and add the restriction yourself,
or restrict access to domains/ips from the firewall which easier and more robust
and if you use windows I think there is also a web filtering, some sort of parental control, in users section of the control panel
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