diff --git a/source/adapter.js b/source/adapter.js
index 2385fc9..1c31489 100644
--- a/source/adapter.js
+++ b/source/adapter.js
@@ -1255,6 +1255,7 @@ if ( (navigator.mozGetUserMedia ||
           '<param name="windowless" value="true" /> ' +
           '<param name="streamId" value="' + streamId + '" /> ' +
           '<param name="tag" value="' + tag + '" /> ' +
+          (AdapterJS.options.getAllCams ? '<param name="forceGetAllCams" value="True" />':'') +
           '</object>';
         while (temp.firstChild) {
           frag.appendChild(temp.firstChild);