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!

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.

I am having a problem viewing YouTube videos in the latest version of Firefox.

  • 1 reply
  • 16 have this problem
  • 1 view
  • Last reply by Doobster

Doobster
Doobster
more options

I'm on Firefox 34.0 on a Windows 7 laptop. Up until recently I had no trouble viewing videos on YouTube. I would enter "youtube.com" into the browser address and it would take me to http://youtube.com. But now it takes me to "http://m.youtube.com/?", which appears to be a mobile YouTube viewer. And when I try to open a video there I get this message:

"Firefox doesn't know how to open this address, because one of the following protocols (rtsp) isn't associated with any program or is not allowed in this context."

This just started after the latest version of Firefox uploaded to my computer. Why can't I access the normal Windows version of YouTube anymore?

I'm on Firefox 34.0 on a Windows 7 laptop. Up until recently I had no trouble viewing videos on YouTube. I would enter "youtube.com" into the browser address and it would take me to http://youtube.com. But now it takes me to "http://m.youtube.com/?", which appears to be a mobile YouTube viewer. And when I try to open a video there I get this message: "Firefox doesn't know how to open this address, because one of the following protocols (rtsp) isn't associated with any program or is not allowed in this context." This just started after the latest version of Firefox uploaded to my computer. Why can't I access the normal Windows version of YouTube anymore?

Chosen solution

This problem has been fixed. I rebooted my laptop after clearing my Firefox cache and deleting all cookies. Once my laptop was rebooted, I opened Firefox and now I can access the regular YouTube site, not the mobile site.

Read this answer in context 👍 8

All Replies (1)

Doobster
Doobster Question owner
more options

Chosen Solution

This problem has been fixed. I rebooted my laptop after clearing my Firefox cache and deleting all cookies. Once my laptop was rebooted, I opened Firefox and now I can access the regular YouTube site, not the mobile site.