Bug 1596935 - Firefox doesn’t resolve <link rel=dns-prefetch> on HTTPS r=dom-core,necko-reviewers,kershaw,sefeng

Enable rel=dns-prefetch on HTTPS documents.

Differential Revision: https://phabricator.services.mozilla.com/D205631

modules/libpref/init/StaticPrefList.yaml

@@ -12357,7 +12357,7 @@
 
 - name: network.dns.disablePrefetchFromHTTPS
   type: bool
-  value: true
+  value: false
   mirror: always
 
 # Max time to shutdown the resolver threads