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After installing Norton Antivirus program Yourtube videos will crash

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I installed Norton AntiVirus and now any YouTube videos will play for a few seconds, refresh, then crash. I've disabled all the addons and plugins, trying to play videos in safe mode, nothing has worked so far.

I installed Norton AntiVirus and now any YouTube videos will play for a few seconds, refresh, then crash. I've disabled all the addons and plugins, trying to play videos in safe mode, nothing has worked so far.

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We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

  1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
  2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste that into the "Post a Reply" box.

aboutcrashesFx29

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.