Block mp4-files in WordPress

Hi there!

How can i block mp4-video-files für the whole multisite?



  • Predrag Dubajic
    • Support

    Hey Roger,

    Hope you’re doing well :slight_smile:

    You can give it a try with something like this added to your child themes functions.php or added as mu-plugin:

    function remove_mime_types($mimes){
    unset( $mimes['mp4'] );
    return $mimes;

    If you’re using WordPress Multisite installation then there’s no need to add this code, you can go to Network admin, Settings > Network Settings panel and scroll down to “Upload file types” field where you can simply remove extensions you want to block.

    Hope this helps :slight_smile:

    Best regards,


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