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Recently whenever I download MP4 videos from Youtube, it does not work on my PC. The FLV videos are working just fine.

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Tasdikrasen
Tasdikrasen
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Recently whenever I download MP4 videos from Youtube, it does not work on my PC. The FLV videos are working just fine. Point to be noted that previously downloaded MP4 Videos from youtube are working just fine.

Recently whenever I download MP4 videos from Youtube, it does not work on my PC. The FLV videos are working just fine. Point to be noted that previously downloaded MP4 Videos from youtube are working just fine.

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Microrobot
Microrobot
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Hello,

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Thank you.