--- a/dom/media/eme/CDMCaps.cpp
+++ b/dom/media/eme/CDMCaps.cpp
@@ -48,16 +48,17 @@ CDMCaps::AutoLock::IsKeyUsable(const Cen
 {
   mData.mMonitor.AssertCurrentThreadOwns();
   const auto& keys = mData.mKeyStatuses;
   for (size_t i = 0; i < keys.Length(); i++) {
     if (keys[i].mId != aKeyId) {
       continue;
     }
     if (keys[i].mStatus == kGMPUsable ||
+        keys[i].mStatus == kGMPOutputRestricted ||
         keys[i].mStatus == kGMPOutputDownscaled) {
       return true;
     }
   }
   return false;
 }
 
 bool