diff --git a/web/js-src/ruffle-embed.js b/web/js-src/ruffle-embed.js
index 06d6b9291..50d58962b 100644
--- a/web/js-src/ruffle-embed.js
+++ b/web/js-src/ruffle-embed.js
@@ -35,7 +35,7 @@ export default class RuffleEmbed extends RufflePlayer {
     }
 
     static is_interdictable(elem) {
-        return elem.type === "application/x-shockwave-flash";
+        return elem.type === "application/x-shockwave-flash" || elem.type === "application/futuresplash";
     }
 
     static from_native_embed_element(elem) {
diff --git a/web/js-src/ruffle-object.js b/web/js-src/ruffle-object.js
index 8e392ede9..22945697b 100644
--- a/web/js-src/ruffle-object.js
+++ b/web/js-src/ruffle-object.js
@@ -17,7 +17,7 @@ export default class RuffleObject extends RufflePlayer {
     }
 
     static is_interdictable(elem) {
-        return elem.type === "application/x-shockwave-flash";
+        return elem.type === "application/x-shockwave-flash" || elem.type === "application/futuresplash";
     }
 
     static params_of(elem) {