--- a/browser/components/nsBrowserGlue.js
+++ b/browser/components/nsBrowserGlue.js
@@ -473,17 +473,17 @@ BrowserGlue.prototype = {
 
     if (AppConstants.NIGHTLY_BUILD) {
       os.addObserver(this, AddonWatcher.TOPIC_SLOW_ADDON_DETECTED, false);
     }
 
     this._flashHangCount = 0;
     this._firstWindowReady = new Promise(resolve => this._firstWindowLoaded = resolve);
 
-    if (AppConstants.platform == "win" ||
+    if (AppConstants.isPlatformAndVersionAtMost("win", "5.2") ||
         AppConstants.platform == "macosx") {
       // Handles prompting to inform about incompatibilites when accessibility
       // and e10s are active together.
       E10SAccessibilityCheck.init();
     }
   },
 
   // cleanup (called on application shutdown)