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some videos will not run in firefox while others run just fine. any suggestions?

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When I open a tab that has a video some will run while others will not. I've tried refreshing Firefox and checking and activating add-ons but no luck. Any suggestions?

When I open a tab that has a video some will run while others will not. I've tried refreshing Firefox and checking and activating add-ons but no luck. Any suggestions?

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  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0

More Information

FredMcD
  • Top 10 Contributor
4256 solutions 59603 answers

Are the not playing clips on the same websites? Right-click in the player area. What type of player is used? flash, HTML5 . . . . .

Are the not playing clips on the same websites? Right-click in the player area. What type of player is used? flash, HTML5 . . . . .

Question owner

When I right click inside the player frame it does not tell me what type file it uses, e.g.: flash, HTML...

When I right click inside the player frame it does not tell me what type file it uses, e.g.: flash, HTML...
FredMcD
  • Top 10 Contributor
4256 solutions 59603 answers

Please provide public links (no passwords) that we can check out.

Please provide public links (no passwords) that we can check out.

Question owner

I think that the video files that won't run are html and adobe flash. I have the latest adobe flash on my computer but those files aparently won't run. I've installed/updated the file to run html video but, that hasn't helped those videos either.

I think that the video files that won't run are html and adobe flash. I have the latest adobe flash on my computer but those files aparently won't run. I've installed/updated the file to run html video but, that hasn't helped those videos either.

Question owner

Here is a link to one of the video types that will not run in Firefox

http://video.foxnews.com/v/5240324763001/?#sp=show-clips

Here is a link to one of the video types that will not run in Firefox http://video.foxnews.com/v/5240324763001/?#sp=show-clips
FredMcD
  • Top 10 Contributor
4256 solutions 59603 answers

That clip is being streamed. When I can't get a clip to play, I download it and watch it later.

Go to the Mozilla Add-ons Web Page {web link} (There’s a lot of good stuff here) and search for a download manager.

That clip is being streamed. When I can't get a clip to play, I download it and watch it later. Go to the '''[https://addons.mozilla.org/en-US/firefox/ Mozilla Add-ons Web Page]''' {web link} (There’s a lot of good stuff here) and search for a download manager.

Question owner

I did that and the download manager doesn't work either.

I did that and the download manager doesn't work either.
FredMcD
  • Top 10 Contributor
4256 solutions 59603 answers

Which one did you use?

The one I used was (Video) DownloadHelper {web link} The easy way to download and convert Web videos from hundreds of YouTube-like sites. This works also for audio and picture galleries.

Which one did you use? The one I used was '''[https://addons.mozilla.org/en-US/firefox/addon/video-downloadhelper/ (Video) DownloadHelper]''' {web link} The easy way to download and convert Web videos from hundreds of YouTube-like sites. This works also for audio and picture galleries.

Question owner

I used the "DownloadHelper" that you provided the link for. It no workie either.

I used the "DownloadHelper" that you provided the link for. It no workie either.
FredMcD
  • Top 10 Contributor
4256 solutions 59603 answers

I called for more help.

I called for more help.
jscher2000
  • Top 10 Contributor
8764 solutions 71703 answers

Does your Firefox say it can play HTML5 videos? YouTube has a test page which checks what Firefox says it does and does not support. Usually all but the last box are blue:

https://www.youtube.com/html5

What does yours look like?

Does your Firefox say it can play HTML5 videos? YouTube has a test page which checks what Firefox says it does and does not support. Usually all but the last box are blue: https://www.youtube.com/html5 What does yours look like?
cor-el
  • Top 10 Contributor
  • Moderator
17530 solutions 158515 answers

Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • Switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • Do NOT click the "Refresh Firefox" button on the Safe Mode start window
Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem. *Switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance *Do NOT click the "Refresh Firefox" button on the Safe Mode start window *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes