1. Nov 12, 2019 A multipurpose internet mail extension, or MIME type, is an internet standard that describes the contents of internet files based on their natures and formats. This cataloging helps the browser open the file with the appropriate extension or plugin. Although the term includes the word “ mail,” it is used for web pages, too.
  2. Dec 24, 2020 The error “No video with supported format and MIME type found” is generally about the HTML5 media player, so you should also check if your browser supports playing the media files in this format. How to fix the error? Here are the solutions you can try. You shouldn’t have to try them all.
  3. $ npm install mime-types Adding Types. All mime types are based on mime-db, so open a PR there if you'd like to add mime types. API var mime = require ('mime-types') All functions return false if input is invalid or not found. Mime.lookup(path) Lookup the content-type associated with a file.

How to Fix No Video with Supported Format and MIME type found Users experience the error ‘ No video with supported format and MIME type found ’ when they try to stream video content on their Firefox browsers. This video can range from Facebook to other platforms such as LiveGo.

A MIME type (now properly called 'media type', but also sometimes 'content type') is a string sent along with a file indicating the type of the file (describing the content format, for example, a sound file might be labeled audio/ogg, or an image file image/png).

It serves the same purpose as filename extensions traditionally do on Windows. The name originates from the MIME standard originally used in E-Mail.

Learn more

General knowledge

  • Internet media type on Wikipedia

Technical reference

Autocomplete: Property x not found on type java.lang.String
  • Details information about the usage of MIME Types in a Web context.

Firefox fails to display HTML 5OGG and WebM video formats on the page and displays the error – “No Video with Supported Format and Mime Type Found

The issue is that the web server doesn’t quite know what to think of these formats and serves them out in the wrong type of format which the browser doesn’t understand. What you need to do is add the correct file types of OGG and WebM for video to the Web Server for those file extensions. MP4 will be Ok as that fomat is more widely adopted.

Mime Type Found

Apache WebServer

To fix this issue on Apache you need to add the following content to the ‘.htaccess‘ file which is found in your document root (public_html or htdocs). As it starts with a ‘.’ it is invisible to some browsing apps make sure you have a ‘show invisible files’ settings enabled. Below is the setting for the free FTP client Cyberduck

Just paste this at the very head of the .htaccess file and save:

No video with supported mime type found

You can also add these mime types directly in the Apache configuration file ‘mime.types’, this way it will affect all sites that share the same server. Open the file below –

Add in –

Restart Apache –

That should solve any Firefox browser issues. However what if your video/audio files are being served from a cloud style storage solution like Amazon S3, this will also needs mime types added.

Amazon S3 Mime Types Serving

There are a few ways to do this – directly in S3 or via an FTP client.

Directly in S3

Select the file and in the Properties set the Key and the Value to ‘Content-Type’ and then the required ‘video/extension‘. This doesn’t always take immediate affect on existing files and a replacement upload with a different filename and the correct key/value applied will force it to work in the browser.

Directly in Cyberduck (Mac & PC)

Rather than go through the S3 web interface you can create a more user friendly connection to the storage buckets via Cyberduck.

Navigate to the file and ‘Get Info’ (command+i), then set the name and value. Once done one time, files of the same type will automatically get the correct mime types.

Directly in Transmit (Mac)

No Video Supported Format And Mime Type Found

In Transmit (preferences > Cloud) you can permanently add in the name/value pairs so all subsequent uploads will contain the mime type.

Name / Value Pairs

Turbo boost switcher mac. The Name is Content-Type

No Video With Supported Mime Type Found Tor

The Value is one of the following:

MIME Types, Their File Extensions, And Applications

  • video/mp4
  • video/ogg
  • video/webm
  • audio/mp4
  • audio/ogg

Not Supported Mime Type Found

That’s the lot, all you needed to know about mime content headers but were too afraid too ask. Below is some additional information on setting up the key video players for general use and for responsive design techniques – enjoy!