--- a/dom/webidl/Document.webidl
+++ b/dom/webidl/Document.webidl
@@ -217,17 +217,17 @@ partial interface Document {
   [ChromeOnly]
   readonly attribute unsigned long referrerPolicy;
 
 };
 
 // https://fullscreen.spec.whatwg.org/#api
 partial interface Document {
   // Note: Per spec the 'S' in these two is lowercase, but the "Moz"
-  // versions hve it uppercase.
+  // versions have it uppercase.
   [LenientSetter, Func="nsDocument::IsUnprefixedFullscreenEnabled"]
   readonly attribute boolean fullscreen;
   [BinaryName="fullscreen", Deprecated="PrefixedFullscreenAPI"]
   readonly attribute boolean mozFullScreen;
   [LenientSetter, Func="nsDocument::IsUnprefixedFullscreenEnabled"]
   readonly attribute boolean fullscreenEnabled;
   [BinaryName="fullscreenEnabled", Deprecated="PrefixedFullscreenAPI"]
   readonly attribute boolean mozFullScreenEnabled;