diff --git a/src/js/scriptlets/cosmetic-logger.js b/src/js/scriptlets/cosmetic-logger.js
index 85b71986f..f58180a0c 100644
--- a/src/js/scriptlets/cosmetic-logger.js
+++ b/src/js/scriptlets/cosmetic-logger.js
@@ -50,7 +50,7 @@ const loggedSelectors = new Set();
 
 /******************************************************************************/
 
-const rePseudoElements = /::?(?:after|before)$/;
+const rePseudoElements = /:(?::?after|:?before|:[a-z-]+)$/;
 
 const safeMatchSelector = function(selector, context) {
     const safeSelector = rePseudoElements.test(selector)
diff --git a/src/js/scriptlets/element-picker.js b/src/js/scriptlets/element-picker.js
index 8f417aa2f..082dcda91 100644
--- a/src/js/scriptlets/element-picker.js
+++ b/src/js/scriptlets/element-picker.js
@@ -698,7 +698,7 @@ const filtersFrom = function(x, y) {
 const filterToDOMInterface = (( ) => {
     const reHnAnchorPrefix = '^[\\w-]+://(?:[^/?#]+\\.)?';
     const reCaret = '(?:[^%.0-9a-z_-]|$)';
-    const rePseudoElements = /::?(?:after|before)$/;
+    const rePseudoElements = /:(?::?after|:?before|:[a-z-]+)$/;
 
     // Net filters: we need to lookup manually -- translating into a foolproof
     // CSS selector is just not possible.