html - no video with supported format and MIME type found. What does this mean and how can I change this

Question

no video with supported format and MIME type found

A huge screen for video is displayed and says the message above. How do I solve this? This happens to me only in Mozilla Fire fox and not on Google Chrome. I am using webm videos and mp4 videos.

This is for html5 video.

Answer 1

The webserver might not be sending the correct MIME types. Depending on the server you may be able to add a .htaccess file with the following:

AddType video/webm .webm
AddType video/mp4 .mp4

If that doesn't work try searching for "server mime types".