diff --git a/src/chrome/content/rules/Phoronix.com.xml b/src/chrome/content/rules/Phoronix.com.xml
index 2dc5059eed8d..f1614732ee26 100644
--- a/src/chrome/content/rules/Phoronix.com.xml
+++ b/src/chrome/content/rules/Phoronix.com.xml
@@ -1,4 +1,8 @@
-<ruleset name="Phoronix.com">
+<!--
+	breaks forum, https://github.com/EFForg/https-everywhere/pull/1496
+-->
+
+<ruleset name="Phoronix.com" default_off="mixed_content">
   <target host="phoronix.com" />
   <target host="www.phoronix.com" />