4510: clarify this is the chrome

user.js

@@ -1652,7 +1652,7 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDE
 user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
    // user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF]
 /* 4510: disable showing about:blank as soon as possible during startup [FF60+]
- * When default true (FF62+) this no longer masks the RFP resizing activity
+ * When default true (FF62+) this no longer masks the RFP chrome resizing activity
  * [1] https://bugzilla.mozilla.org/1448423 ***/
 user_pref("browser.startup.blankWindow", false);