# Why won't Windows Media Videos play in my Firefox browser?
**URL:** https://boards.straightdope.com/t/why-wont-windows-media-videos-play-in-my-firefox-browser/356807
**Category:** Factual Questions
**Created:** [May 15, 2006, 5:54am UTC](https://boards.straightdope.com/t/why-wont-windows-media-videos-play-in-my-firefox-browser/356807 "2006-05-15T05:54:55Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@some\_white\_dude](https://boards.straightdope.com/u/some_white_dude)
#### Post date: [May 15, 2006, 5:54am UTC](https://boards.straightdope.com/t/why-wont-windows-media-videos-play-in-my-firefox-browser/356807/1 "2006-05-15T05:54:55Z")
It’s all in the OP.
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### Author:  [@GuanoLad](https://boards.straightdope.com/u/GuanoLad)
#### Post date: [May 15, 2006, 12:25pm UTC](https://boards.straightdope.com/t/why-wont-windows-media-videos-play-in-my-firefox-browser/356807/2 "2006-05-15T12:25:09Z")
I know if they’re on a Microsoft (or their affillates) site, then they deliberately don’t let you play them in a non IE browser.
But there may also be an extension you have that is interfering somehow.
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### Author:  [@KP](https://boards.straightdope.com/u/KP)
#### Post date: [May 15, 2006, 12:41pm UTC](https://boards.straightdope.com/t/why-wont-windows-media-videos-play-in-my-firefox-browser/356807/3 "2006-05-15T12:41:15Z")
There are a lot of things that can go awry, but first I’d run your computer’s version of Media Player (there can be several, depending on what OS and software you have installed. You may even have a non-MS version call ed Media Player Classic) And enter the file’s URL. If that works, make sure you have Firefox set to “Open with this application” for WMV, etc.
If your copy of Media Player won’t play the files you want, you may need to download an upgrade or alternative version.