1 files changed, 2 insertions, 0 deletions
diff --git a/toolkit/components/extensions/test/mochitest/test_ext_contentscript_securecontext.html b/toolkit/components/extensions/test/mochitest/test_ext_contentscript_securecontext.html
index 093c26898f..f9230c9a5f 100644
--- a/toolkit/components/extensions/test/mochitest/test_ext_contentscript_securecontext.html
+++ b/toolkit/components/extensions/test/mochitest/test_ext_contentscript_securecontext.html
@@ -14,6 +14,8 @@
     await SpecialPowers.pushPrefEnv({
       "set": [
         ["dom.w3c_pointer_events.getcoalescedevents_only_in_securecontext", true],
+        // Test is intentionally testing in non-secure contexts.
+        ["dom.security.https_first", false]
       ]
     });
   });