如果您尝试在Firefox浏览器中播放视频，但在播放器上收到Video format or MIME type is not supported错误消息，这些解决方案可能会对您有所帮助。当您的浏览器缺少播放该视频所需的某些功能时，就会出现此问题。

^(Video)不支持视频格式或MIME类型^(MIME)

1. 安装^(Install)，重新安装Adob​​e Flash Player
2. 在浏览器中启用 JavaScript

1]安装或重新安装Adobe Flash Player^{(1] Install or re-install Adobe Flash Player)}

Adobe Flash Player是播放此类视频所需的主要工具。尽管您可能无需安装Adob​​e Flash Player就可以播放类似的视频，但如果您收到此类错误消息，则需要安装它。要安装它，请访问官方 adobe.com 网站^{(official adobe.com website)}。

如果您已经在计算机上安装了它；您可以尝试卸载然后重新安装它。

2]在浏览器中启用JavaScript^{(2] Enable JavaScript in the browser)}

有许多网站管理员使用JavaScript在他们的网页上显示播放器。如果您在Firefox浏览器中^(Firefox)禁用了 JavaScript^{(disabled JavaScript)}，则很有可能收到此错误消息。因此，简单的解决方案是启用JavaScript。

为此，请在地址栏中输入并点击Enter按钮：

about:config

您需要单击“我接受风险”^{(I accept the risk )}按钮才能走得更远。之后，寻找：

javascript.enabled

如果 Value 设置为False，只需双击它使其变为True。之后，重新加载页面并检查是否可以播放视频。

您可以尝试的其他事情是 – ​​禁用所有加载项、清除网络缓存、更新浏览器^{(update your browser)}并查看是否有帮助。^{(Other things you could try is – Disable all the add-ons, clear web cache, update your browser and see that helps.)}

Video format or MIME type is not supported

If you are trying to play a video in Firefox browser but you rеcеive Video format or MIME type is not supported error message on the player, these solutions are likely to help you. This problem occurs when your browser lacks certain functionality that is required to play that video.

Video format or MIME type is not supported

1. Install, re-install Adobe Flash Player
2. Enable JavaScript in the browser

1] Install or re-install Adobe Flash Player

Adobe Flash Player is the primary thing you need to play such video. Although you may be able to play similar videos without installing the Adobe Flash Player, you need to install that if you are getting such an error message. To install it, visit the official adobe.com website.

In case, you already have it installed on your computer; you can try uninstalling and then re-installing it.

2] Enable JavaScript in the browser

There are many website admins who use JavaScript to show the player on their web pages. If you have disabled JavaScript in your Firefox browser, there is a high chance of getting this error message. Therefore, the simple solution is to enable JavaScript.

To do so, enter this in the address bar and hit the Enter button:

about:config

You need to click the I accept the risk button to go further. After that, look for:

javascript.enabled

If the Value is set to False, just double-click on it to make it True. After that, reload the page and check if you can play the video or not.

Other things you could try is – Disable all the add-ons, clear web cache, update your browser and see that helps.

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