RequestPolicy is a Firefox extension that gives you control over cross-site requests. --- Be sure to look at the dev-1.0 branch as that's where all of the interesting work is happening. See also: https://www.requestpolicy.com/1.0.html
when "Block requests by default" is set as default policy, firefox' own internal page about:healthreport won't work & it is apparently not possible to set a rule to work around that.
when "Block requests by default" is set as default policy, firefox' own internal page about:healthreport won't work & it is apparently not possible to set a rule to work around that.