This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Firefox won't play any live video streams.

demonchild_2004
demonchild_2004
more options

Hi, Since yesterday Firefox won't play any live video streams on any website. An HTML5 error message shows up.

I've tried upgrading Firefox, disabling Add ons, starting in safe mode, completely uninstalling and starting from scratch and installing and deleting Adobe flash as a last resort.

I made sure everything was up to date on my laptop and they play no problem on other browsers. I just can't work out what's wrong with Firefox.

Hi, Since yesterday Firefox won't play any live video streams on any website. An HTML5 error message shows up. I've tried upgrading Firefox, disabling Add ons, starting in safe mode, completely uninstalling and starting from scratch and installing and deleting Adobe flash as a last resort. I made sure everything was up to date on my laptop and they play no problem on other browsers. I just can't work out what's wrong with Firefox.

Chosen solution

I think I've done it.

I ran Revo Uninstaller pro and deleted every Firefox file and folder. Then re-installed, it got stuck and said Firefox was not designed to run on this version of windows (windows updated the day I started having problems) and to contact the system administrator. I closed that and downloaded a different copy of Firefox when prompted. The message came up again so I closed it and it installed no problem.

I can now view any live streaming on any website.

Read this answer in context 👍 0

All Replies (3)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

What error message do you get ?

Can you attach a screenshot?

Are there messages in the Web Console about this issue ?

demonchild_2004
demonchild_2004 Question owner
more options

I have attached a couple of images of error messages from different websites with live streaming.

There isn't an error message on Twitter, it just doesn't play any videos and flashes an image from the start of the video repeatedly.

demonchild_2004
demonchild_2004 Question owner
more options

Chosen Solution

I think I've done it.

I ran Revo Uninstaller pro and deleted every Firefox file and folder. Then re-installed, it got stuck and said Firefox was not designed to run on this version of windows (windows updated the day I started having problems) and to contact the system administrator. I closed that and downloaded a different copy of Firefox when prompted. The message came up again so I closed it and it installed no problem.

I can now view any live streaming on any website.