No. Any latest HTML5 browser can be used to upload and playback videos and other digital media assets. In case your computer or device browser version is old and does not support HTML5, you may need Flash plugin installed to playback video content or any SCORM content that utilizes interactive flash or videos. However, most modern authoring tools have the ability to export HTML5 SCORM Content and will not require any browser plug-in to playback on modern browsers. In a non-HTML5 compliant browser, content playback fall back to Flash or Silverlight plug-in to playback video.

Please check VIDIZMO Service Specification page for details