--- a/js/src/devtools/rootAnalysis/analyzeHeapWrites.js
+++ b/js/src/devtools/rootAnalysis/analyzeHeapWrites.js
@@ -487,17 +487,17 @@ function ignoreContents(entry)
         "Gecko_NewCSSValueSharedList",
         "Gecko_CSSValue_InitSharedList",
 
         // Unable to trace through dataflow, but straightforward if inspected.
         "Gecko_NewNoneTransform",
 
         // Need main thread assertions or other fixes.
         /EffectCompositor::GetServoAnimationRule/,
-        /LookAndFeel::GetColor/,
+        /Gecko_GetLookAndFeelSystemColor/,
     ];
     if (entry.matches(whitelist))
         return true;
 
     if (entry.isSafeArgument(0)) {
         var heapWhitelist = [
             // Operations on heap structures pointed to by arrays and strings are
             // threadsafe as long as the array/string itself is threadsafe.