--- a/dom/media/MediaInfo.h
+++ b/dom/media/MediaInfo.h
@@ -284,21 +284,28 @@ public:
   // container.
   gfx::IntRect ScaledImageRect(int64_t aWidth, int64_t aHeight) const
   {
     if ((aWidth == mImage.width && aHeight == mImage.height) ||
         !mImage.width ||
         !mImage.height) {
       return ImageRect();
     }
+
     gfx::IntRect imageRect = ImageRect();
+    int64_t w = (aWidth * imageRect.Width()) / mImage.width;
+    int64_t h = (aHeight * imageRect.Height()) / mImage.height;
+    if (!w || !h) {
+      return imageRect;
+    }
+
     imageRect.x = (imageRect.x * aWidth) / mImage.width;
     imageRect.y = (imageRect.y * aHeight) / mImage.height;
-    imageRect.SetWidth((aWidth * imageRect.Width()) / mImage.width);
-    imageRect.SetHeight((aHeight * imageRect.Height()) / mImage.height);
+    imageRect.SetWidth(w);
+    imageRect.SetHeight(h);
     return imageRect;
   }
 
   Rotation ToSupportedRotation(int32_t aDegree)
   {
     switch (aDegree) {
       case 90:
         return kDegree_90;