Using my browser Firefox 73.0.1 and it is sandboxed. I go to Yahoo mail and read a mail that has a video attached. The video is usually an MP4. With Sandboxie 5.33.1, the playback would fail due to not being able to find a codec. Now with version 5.33.2 it fails with a message that the file could not be retrieved from a temp folder. I have all the video applications in Firefox set to use my media player of choice. If I use Firefox un-sandboxed, the videos play without issue. What can I do about this. hanks