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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

YouTube video player dont work in Mozilla Firefox

more options

Guys, strange thing happened. :D As I said in the title, YouTube video player dont work in Mozilla Firefox when I'm logged in with Google acc, when I clear cache and site data for YouTube, it logges me out, but video player and whole site YT works fine, then again I sign in, and it dont work... Every other section on the site loads perfectly (comments, related videos etc.) except video player. I dont have any plugins installed or add ons (except uBlock but I have tried to run yt with uBlock disabled). Help :D

Guys, strange thing happened. :D As I said in the title, YouTube video player dont work in Mozilla Firefox when I'm logged in with Google acc, when I clear cache and site data for YouTube, it logges me out, but video player and whole site YT works fine, then again I sign in, and it dont work... Every other section on the site loads perfectly (comments, related videos etc.) except video player. I dont have any plugins installed or add ons (except uBlock but I have tried to run yt with uBlock disabled). Help :D

All Replies (6)

more options

I haven't do shit, it works now

more options

Google likes to experiment on its users, so things do sometimes change temporarily and then change back. ??

more options

its something about cookies, bcuz It happend again, even when I sign out, I still cant play videos... then I go right click -> view page info -> clear cookies and site data -> then it works, I sign in, it works, but I close that tab, go again for youtube and it dont work again, even when I sign out... so its not about google acc its about cookies

more options

The "experiment" population often is identified by a cookie, which is why using a private window instead of a regular workaround can be an effective workaround.

What's odd is that you have the opposite symptoms that some other users report: they get the player but none of the rest of the page. Neither is good!

more options

same thing on chrome and edgee lol whats wrong with my computer

more options

Do you have security or parental filtering software that intercepts your browsing? Some of the products with that feature are listed in this article: How to troubleshoot security error codes on secure websites.