The most common cause of problems with MIME file expansion is simply the lack of appropriate applications installed on your computer. In this case, it is enough to find, download and install an application that serves files in MIME format - such programs are available below.

Search system

Enter file extension

Help

Clue

Please note that some encoded data from files that our computer does not read can sometimes be viewed in Notepad. In this way we will read fragments of text or numbers - It is worth checking whether this method also works in the case of MIME files.

What to do if the application from the list has already been installed?

Often an installed application should automatically associate with a MIME file. If this does not happen, then the MIME file can be successfully associated manually with the newly installed application. Just right-click on the MIME file, and then from the available ones select the "Choose default program" option. Then you need to select the “View” option and find your favorite application. The entered changes must be approved using the "OK" option.

Programs that open MIME files

Windows

Mac OS

Linux

Why can't I open a MIME file?

Problems with MIME files can also have other causes. Sometimes even installing software on your computer that supports MIME files will not solve the problem. The reason for the inability to open and work with a MIME file may also be:

Inappropriate MIME file associations in registry entries
- corruption of the MIME file we open
- MIME file infection (viruses)
- too little computer resource
- outdated drivers
- removing the MIME extension from the Windows registry
- incomplete installation of a program that supports the MIME extension

Fixing these issues should allow you to open and work with MIME files freely. In case your computer still has problems with files, you need to take the help of an expert who will determine the exact cause.

My computer does not show file extensions, what should I do?

In standard Windows system settings, the computer user does not see MIME file extensions. This can be successfully changed in the settings. Just go to the "Control Panel" and select "View and Personalization". Then you need to go to "Folder Options" and open "View". In the "View" tab there is an option "Hide extensions of known file types" - you must select this option and confirm the operation by clicking the "OK" button. At this point, the extensions of all files, including MIME, should appear sorted by file name.

Recently, many popular browsers have been prone to crashes and bugs. Some errors will be resolved soon with the release of updates, while others will have to be corrected yourself. In this article we will tell you what to do if you get the error “Video in a supported format and MIME type not found” in Firefox or Tor. We will describe the reasons for the failure, as well as all the simple options for fixing this bug.

What does MIME format mean?

MIME is a standard for describing transmission and data type. This is a kind of indication of the type of content that helps the browser choose the appropriate means of interpretation. This standard is applied in various text structures. As you know, sites look just like this.

Reasons for the error

A crash occurs when you try to load a media player on a website, or open another active window with content displayed. The most likely causes are outdated plugins, extensions and codecs. This refers to the elements responsible for displaying content, in particular, this is implemented by the Windows Media Player codecs and a special codec plugin - H264, which is used on most sites.

Updating the browser or codecs also makes viewing unavailable on some sites. This can be explained by the use of outdated technology on the resource or by an error by the developer who incorrectly configured the output and processing of his web player.

Visual view of the error “Video in MIME format not found”

The problem can occur even on popular sites, but if the fault is on the server side, then it is promptly fixed. Users who use not only Firefox, but also other browsers based on its engine, such as Tor, encounter this error. Users of web clients based on Google Chrome practically never encounter this error.

There is a possibility that the protection mechanisms are preventing startup. This is explained by the fact that video playback using MIME technology requires automatic start, i.e., it is a priori suspicious and unwanted content.

What to do if no supporting MIME format is found

To get started, try right-clicking on the video area and selecting from the menu "Open video". Try switching between HTML5 and Flash formats, but they are not available everywhere. If this doesn't help, let's try other simple steps. What should be done:

• for Windows 7 – www.microsoft.com/details.aspx?id=16546.
• for Windows 10 – www.microsoft.com/mediafeaturepack.

To successfully play videos in Firefox, you will also need a standard Windows Media Player. Very often it is absent from pirates. If there are any problems installing it, it is recommended to select any European region and select its time zone, adjusting the PC time accordingly.

Only in rare cases is it worth trying to replace the standard Media Player with an alternative module, for example, VLC player.

Solving the failure through the IIS manager

To make changes, follow these instructions:

As a rule, it rarely reaches this stage, and the problem is solved in other ways. If suddenly “IIS Manager” is not in the list, then follow these steps:

After this, the Manager will appear in the Administration list.

If none of the steps helps, then most likely the problem is on the part of the site developer, who has incorrectly configured the output in audio or video players on the site. For a quick solution, write to the resource administrator.

Let's sum it up

Now you know what to do when the “Video in a supported format and MIME type not found” error appears in Firefox. The main reason for its appearance is an update of browser technologies, playback components, or a configured security policy. In any case, the problem is quickly resolved and is unlikely to take much time. However, if you urgently need access, just use a different browser.

As you know, all major browsers, represented by their developers, have already officially declared them a relic of the past and promised not to work with them anymore. And they don’t work, which is why many users are increasingly seeing signs on the screen with characteristic backgrounds and the words “Plugin not supported.”

Actually, nothing surprising. Since the Internet has moved into a new HTML5 future, it is no longer on its way with plugins. At all. So, if Flash is still holding up here and there somehow, then the conversation with browser plugins is now short.

On the other hand, this does not mean that everyone immediately rushed to abandon them. Content on many websites still doesn't work without plugins.

Therefore, when we go to such a site from a new browser, for example, to play a toy, we inevitably receive an error message. Chrom in such cases writes “This plugin is not supported”, Firefox - “The video format or MIME type is not supported”, and so on.

But many necessary and interesting sites will not be updated. The reasons for this can be very different. Let's say the site owner no longer supports this resource (or its individual pages), i.e. doesn’t work with it at all, doesn’t update the content, doesn’t invest money in the site, etc. Even taking into account the fact (or because) the content on the site is generally in demand, and visitors come.

And what should you do if, when you get to such a site and see the standard “Plugin is not supported” message, you still need to get what you came for?

That's right, you need a special software tool that will help fix the problem. And, of course, there is such a tool. And not even alone. And one of the most useful is called NoPlugin.

NoPlugin ( link to github) is a cross-browser program (works in Chrome, Opera and Firefox, including WebExtension), which checks website pages for the presence of embedded media content (by the way, its functionality is limited to media content) .

Upon detection of such content, the program:

A) either connects the HTML5 player and plays the found content directly in the browser, if it can play it without plugins:

B) or, if the browser is still unable to play the content without the plug-in, it offers to download it to a local disk, and then play it using a local player. The notification looks something like this:

As you can see, NoPlugin immediately provides a link to a multimedia file that can be immediately downloaded to your computer, with a related comment that “The page is trying to load the contents of the plugin. Click to open it in media player"). Then, if necessary, you simply click on the button, download the file to your computer and start playback in any player that supports the appropriate file format (in this case, mov).

In the browser, NoPlugin can play files in mp4, mp3, m4a and wav formats. And it finds the files and gives a download link.

This article is no longer maintained, so its content might be out of date.

Table of Contents

Testing QuickTime

To see if QuickTime is installed and working,To see if the QuickTime browser plugin is working, visit this page:

• Embedded QuickTime Movie Test Page at mac.sillydog.org

If the QuickTime video plays, the QuickTime plugin is installed and enabled.

Note: To complete the test on a Windows system, you may need to enable some features of Firefox to communicate through your Windows Firewall. To enable these features, click Unblock when prompted by Firefox.

Installing or updating QuickTime

To install QuickTime or to update to the latest version:

Note: The latest version of QuickTime is for Windows 7 or Vista. If installed on other Windows operating systems, it may not offer full functionality. For more information about current and previous QuickTime versions, visit this Apple downloads page.

1. Download the QuickTime installer file to your computer.
2. When the download completes, close Firefox.
3. Find the file you downloaded and double-click it to start the QuickTime installation.

Starting with QuickTime version 7.7.9, the browser plugin is no longer installed by default and will be removed if you have a previous version of QuickTime on your computer.

If you are installing QuickTime 7.7.9 or above you should select the "Custom" install option instead of a "Typical" install, so that you can include the optional QuickTime Web Plug-in. If you have already installed or updated QuickTime, you can add the browser plugin using these steps:

The QuickTime installation will complete and the browser plugin will be installed. If you see an installation error, close Firefox (if open) and try again. When you next open Firefox you should see the QuickTime plugin listed in the Add-ons Manager.

Enabling or disabling the browser plugin

You can disable or enable the browser plugin in the Firefox Add-ons Manager when QuickTime is installed .

If the browser plugin is disabled, the QuickTime tests linked above and other embedded QuickTime media will not play , even though QuickTime is installed.

Changing how media is handled

Links to media files

When you click on a link to download a media file and the QuickTime plugin can handle that type of file, it will open automatically in Firefox with the QuickTime plugin. You can change this behavior by selecting a different download action in your Firefox Application settings. For more information, see Change what Firefox does when you click on or download a file .

Embedded media

You can only change the file types that are associated with QuickTime Player. The Internet media types that are handled by the browser plugin are enabled by default for all supported media types and cannot be reconfigured.

The QuickTime plugin enables certain media types by default. If you are having problems with embedded content in a webpage, you can reconfigure the QuickTime browser plugin.

If you have installed on your computer antivirus program Can scan all files on your computer, as well as each file individually. You can scan any file by right-clicking on the file and selecting the appropriate option to scan the file for viruses.

For example, in this figure it is highlighted my-file.mime file, then you need to right-click on this file and select the option in the file menu "scan with AVG". When you select this option, AVG Antivirus will open and scan the file for viruses.

Sometimes an error may occur as a result incorrect software installation, which may be due to a problem encountered during the installation process. This may interfere with your operating system associate your MIME file with the correct application software, influencing the so-called "file extension associations".

Sometimes simple reinstallation of Smith Micro StuffIt Deluxe may solve your problem by correctly associating MIME with Smith Micro StuffIt Deluxe. In other cases, problems with file associations may result from bad software programming developer and you may need to contact the developer for further assistance.

Advice: Try updating Smith Micro StuffIt Deluxe to the latest version to ensure you have the latest patches and updates.

This may seem too obvious, but often The MIME file itself may be causing the problem. If you received a file via an email attachment or downloaded it from a website and the download process was interrupted (such as a power outage or other reason), the file may become damaged. If possible, try getting a new copy of the MIME file and try opening it again.

Carefully: A damaged file can cause collateral damage to previous or existing malware on your PC, so it is important to keep your computer up-to-date with an up-to-date antivirus.

If your MIME file related to the hardware on your computer to open the file you may need update device drivers associated with this equipment.

This problem usually associated with media file types, which depend on successfully opening the hardware inside the computer, e.g. sound card or video card. For example, if you are trying to open an audio file but cannot open it, you may need to update sound card drivers.

Advice: If when you try to open a MIME file you get .SYS file error message, the problem could probably be associated with corrupted or outdated device drivers that need to be updated. This process can be made easier by using driver update software such as DriverDoc.

If the steps do not solve the problem and you are still having problems opening MIME files, this may be due to lack of available system resources. Some versions of MIME files may require a significant amount of resources (e.g. memory/RAM, processing power) to properly open on your computer. This problem is quite common if you are using fairly old computer hardware and at the same time a much newer operating system.

This problem can occur when the computer is having trouble keeping up with a task because the operating system (and other services running in the background) may consume too many resources to open a MIME file. Try closing all applications on your PC before opening Multi-Purpose Internet Mail Extension. Freeing up all available resources on your computer will provide the best conditions for attempting to open the MIME file.

If you completed all the steps described above and your MIME file still won't open, you may need to run equipment update. In most cases, even when using older versions of hardware, the processing power can still be more than sufficient for most user applications (unless you're doing a lot of CPU-intensive work, such as 3D rendering, financial/scientific modeling, or intensive multimedia work) . Thus, it is likely that your computer does not have enough memory(commonly called "RAM" or random access memory) to perform the task of opening a file.