diff --git a/lib/polyfill/media_capabilities.js b/lib/polyfill/media_capabilities.js
index 4a59476f85..8c2a14349d 100644
--- a/lib/polyfill/media_capabilities.js
+++ b/lib/polyfill/media_capabilities.js
@@ -39,10 +39,16 @@ shaka.polyfill.MediaCapabilities = class {
     // Browsers.
     // Since MediaCapabilities implementation does not exist in PS4 browsers, we
     // should always install polyfill.
+    // Since MediaCapabilities implementation is buggy in Tizen browsers, we
+    // should always install polyfill for Tizen browsers.
+    // Since MediaCapabilities implementation is buggy in WebOS browsers, we
+    // should always install polyfill for WebOS browsers.
     let canUseNativeMCap = true;
     if (shaka.util.Platform.isApple() ||
         shaka.util.Platform.isPS5() ||
         shaka.util.Platform.isPS4() ||
+        shaka.util.Platform.isWebOS() ||
+        shaka.util.Platform.isTizen() ||
         shaka.util.Platform.isChromecast()) {
       canUseNativeMCap = false;
     }