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How do I view videos in compatability view?

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I am mandated by my school district to watch videos from Region 10. They have to be viewed in in Internet 7 format. Region 10 shows a visual picture about how to do that by going under TOOLS and clicking on COMPATABILITY VIEW SETTINGS, then click on the checkbox DISPLAY ALL WEBSITES IN COMPATIBILITY VIEW. My computers is Windows 7, Internet Explorer 64 bit

I am mandated by my school district to watch videos from Region 10. They have to be viewed in in Internet 7 format. Region 10 shows a visual picture about how to do that by going under TOOLS and clicking on COMPATABILITY VIEW SETTINGS, then click on the checkbox DISPLAY ALL WEBSITES IN COMPATIBILITY VIEW. My computers is Windows 7, Internet Explorer 64 bit

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Firefox doesn't have a "compatibility view". It doesn't need one like IE does, because Firefox has always been "compatible" with published web standards, unlike IE wasn't for many years.

What problem are you having with viewing those videos?
Are those videos supposed to play with the Windows Media Player?
If so, you need to install the WMP Plugin for Firefox.
http://www.interoperabilitybridges.com/windows-media-player-firefox-plugin-download
https://support.mozilla.com/en-US/kb/Using+the+Windows+Media+Player+plugin+with+Firefox