Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

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

Twitter videos will not play on Firefox 40.0.3 on XP

  • 5 پاسخ
  • 33 have this problem
  • 28 views
  • آخرین پاسخ توسّط weezmgk

more options

Firefox 40.0.3 has stopped playing Twitter videos on my 2 computers which run XP. One of the two computers is a laptop I rarely use but has also coincidentally stopped playing videos embedded on Twitter web pages such as https://twitter.com/robbiegreyhound/status/642041948799397889

"This browser does not support video playback." is displayed over the video, see attached image.

Have tried Firefox Safe Mode. Video drivers on both computers are current. Both computers can play video from other websites eg YouTube, abc.net.au/news, no problem. Only videos on the Twitter website produce this problem.

Thanks for any help.

Firefox 40.0.3 has stopped playing Twitter videos on my 2 computers which run XP. One of the two computers is a laptop I rarely use but has also coincidentally stopped playing videos embedded on Twitter web pages such as https://twitter.com/robbiegreyhound/status/642041948799397889 "This browser does not support video playback." is displayed over the video, see attached image. Have tried Firefox Safe Mode. Video drivers on both computers are current. Both computers can play video from other websites eg YouTube, abc.net.au/news, no problem. Only videos on the Twitter website produce this problem. Thanks for any help.

All Replies (5)

more options

image didn't attach with original post

more options

It's not you. It's the web page. I had the same problem, and my viewers work. I also have download managers that check web pages for videos to download. Try contacting the web site support.

more options

Thanks for the help. Unfortunately, Twitter does not respond to requests for help.

I can view Twitter videos with Chrome but Chrome does not play nice with XP, loads up RAM until PC crashes.

  • sigh*

Thanks.

more options

I've called the big guys to help you. Good luck.

more options

Thanks much, Fred, most appreciated.