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How do I run a Windows Media video File .wmv in FireFox? What is the required extension or add-on name?

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  • Last reply by philipp

WinFox99
WinFox99
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I have Windows 7 and FireFox 24.0

I am trying to make a standard Microsoft Media Video file .MWV run. When I click on the video link to plant the video I get a message saying I need a plugin to run the file.

I have already run in the install program at the link below. This install program named wmpfirefoxplugin.exe does not install anything into my FireFox plugins list or Extensions list.

https://support.mozilla.org/en-US/kb/play-windows-media-files-in-firefox?esab=a&as=aaq

When else can I try to make FireFox run a .MWV file?

I have Windows 7 and FireFox 24.0 I am trying to make a standard Microsoft Media Video file .MWV run. When I click on the video link to plant the video I get a message saying I need a plugin to run the file. I have already run in the install program at the link below. This install program named wmpfirefoxplugin.exe does not install anything into my FireFox plugins list or Extensions list. https://support.mozilla.org/en-US/kb/play-windows-media-files-in-firefox?esab=a&as=aaq When else can I try to make FireFox run a .MWV file?

Chosen solution

hello, please try this: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named plugins.load_appdir_plugins. double-click it and change its value to true (a restart of the browser might be necessary afterwards for the change to take effect).

some background on the issue is explained in http://www.ghacks.net/2013/05/15/why-you-may-have-lost-access-to-plugins-or-extensions-in-firefox-21/

Read this answer in context 👍 8

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philipp
philipp
  • Moderator
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Chosen Solution

hello, please try this: enter about:config into the firefox address bar (confirm the info message in case it shows up) & search for the preference named plugins.load_appdir_plugins. double-click it and change its value to true (a restart of the browser might be necessary afterwards for the change to take effect).

some background on the issue is explained in http://www.ghacks.net/2013/05/15/why-you-may-have-lost-access-to-plugins-or-extensions-in-firefox-21/