MIME type for playing mp4 video in firefox

Hello all,

I want to play the mp4 video in firefox with html5 video tag.

I am able to play the video in firefox from the webserver when I place the video outside of the codeigniter framework, say

http://host/video_test.html -> perfectly plays the video in firefox without any issue.


When I place the video inside the codeigniter framework, and access the page I am getting an this message in the browser
"No video with supported format and MIME type found".

in config/mime.php file I have added mp4 => video/mp4 but no luck.

Can you help me to solve the issue, where to set the mime types or some solution.

Thank you,