--- a/devtools/client/inspector/shared/highlighters-overlay.js
+++ b/devtools/client/inspector/shared/highlighters-overlay.js
@@ -272,17 +272,19 @@ HighlightersOverlay.prototype = {
     if (this.highlighters[type]) {
       return this.highlighters[type];
     }
 
     let highlighter;
 
     try {
       highlighter = yield utils.getHighlighterByType(type);
-    } catch (e) {}
+    } catch (e) {
+      // Ignore any error
+    }
 
     if (!highlighter) {
       return null;
     }
 
     this.highlighters[type] = highlighter;
     return highlighter;
   }),