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Firefox cannot play youtube videos (only from youtube, other video sites work fine)

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New User

Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Since about a week ago firefox in my laptop cannot play videos from youtube (only from youtube, videos from other sites and flash games work fine), both on the site or embedded on other site. It just shows "an error occured. Please try again later" I'm using firefox 13.0.1 and the latest flash plugin. My laptop is i5 with win7 64 bit and it's clean, no virus or malware.

I've tried all the solution posted here but nothing works. I've tried uninstall-reinstall both firefox and flash, disabled add-ons, safe mode, downgrade to earlier flash, uninstall realplayer, changed dns, reconfigured my modem, called my good-for-nothing ISP (perhaps connection related?), still cannot play videos from youtube.

I've tried using different computer, I used my old winxp pc with older version of firefox (with same configuration as the firefox I'm using in my laptop) and my ipad, they can play videos but the playback is stuttering which never happened before. Strangely enough, I tried chrome (on the same laptop) and it works well, no stutters. Does this problem has something to do with firefox updates, flash updates, both, or something else?

Please help me, I don't want to go back and forth between browsers just to see video in youtube and I really don't want to change browser. Thanks!

1 ACCEPTED SOLUTION

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New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

That's very strange... this will also be a very long shot but it's possible that because of the long url (&feature=relmfu) it worked. I highly doubt that is the case.

I do recommend deleting your cookies, either all of them or any of them from youtube.

And you probably already tried this, but playing the video on quality different settings might do something.

And last of all, did you try to contact youtube/google about this issue, or restart your pc after making sure all of your stuff are up to date? (you probably did both)

26 REPLIES
New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

I have Real Player installed on my computer. I followed the suggestion and disabled the video download ability in Real Player and YouTube now works.

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Thanks but its not working either, I even uninstalled real player and it is still not working.

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Try using youtube html5. If it still does not work then it is not a problem with flash. http://www.youtube.com/html5

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Thanks but it's also not working, it doesn't even load, the loading circle is not rotating and it's just black. Usually when I do not use the html5 it loads for a few seconds then it says "an error occured. Please try again later" , then still black screen and no video. I also think (probably) it has nothing to do with flash since I can see videos and flash games from other site, but really, what is wrong actually?

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

I honestly don't know but because no one else is answering I will throw around a few more ideas.

You can try http://www.youtube.com/feather_beta Maybe check to see if all your software is up to date that is used to run youtube. (java maybe?)

Also I noticed you were wondering if it was your connection, I kind of doubt that is the problem otherwise everything would be super slow. Either way you can check that at www.speedtest.net

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Thank you very much,

I tried it too, still not working and then I opt out of it and just randomly click on this: http://www.youtube.com/watch?v=OZMBG4Pn3Sg&feature=relmfu

(I still keep it open right now) and it works, the video plays, but only that one. Other videos still won't play.

EDIT: It stopped and showed the same "error please try again later" after 48 seconds. Other videos still won't play.

I tried to reinstall codecs and uninstall-reinstall download manager in my laptop (checked youtube without download manager, checked youtube with latest version of download manager), still, only that one video plays!

This is just so weird. When I googled about the same problem, I found most people are having this kind of problem back in firefox 3 and 4. And yeah, it's not about the connection, I just tested it and it all works fine, high speed and low ping.

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

That's very strange... this will also be a very long shot but it's possible that because of the long url (&feature=relmfu) it worked. I highly doubt that is the case.

I do recommend deleting your cookies, either all of them or any of them from youtube.

And you probably already tried this, but playing the video on quality different settings might do something.

And last of all, did you try to contact youtube/google about this issue, or restart your pc after making sure all of your stuff are up to date? (you probably did both)

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

Thank you very much! It works fine now!

It was all the cookies afterall! My bad, I never thought it was the cookies, next time this happen I'll definitely check the cookies first.

Although it still feels weird, last time I uninstalled firefox I did a clean install which meant there are no cookies. Well it's already solved anyway.

I really thank you for helping me Uric! Smiley Very Happy

New User

Re: Firefox cannot play youtube videos (only from youtube, other video sites work fine)

No problem, glad I could help Smiley Happy