1192104 - Youtube on a poor connection does not work on Firefox, works on chrome

Status: RESOLVED WORKSFORME

(Core :: Networking, defect)

Description

[Michal Purzynski [:michal`] (use NEEDINFO)]

Youtube on a poor connection does not work on Firefox, works on chrome.

I'm in a hotel on a bad connection, trying to play a short video from youtube, just a few minutes long.

Firefox buffers even the 360p version with no success. I just keep waiting.

Chrome plays 720p on the same connection, no problem.

Now, I don't have a flash player in FF and I do have one in Chrome. I can't say if it's used, but Google chrome helper uses like 55% cpu.

I think Chrome does NOT use flash player, I don't see the flash process running anywhere. Right click on the video while playing, shows a menu when I can see a "about the HTML5 player".

Nerd stats show the video is encoded using VP9 (webm), something Firefox does not support.

Comment 1

[Michal Purzynski [:michal`] (use NEEDINFO)]

On FF the nerd statistics show mp4 wiht AVC codec

Comment 2

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

What platform?

Comment 3

[avada]

(In reply to Michal Purzynski [:michal`] (use NEEDINFO) from comment #0)
> Youtube on a poor connection does not work on Firefox, works on chrome.
> 
> I'm in a hotel on a bad connection, trying to play a short video from
> youtube, just a few minutes long.
> 
> Firefox buffers even the 360p version with no success. I just keep waiting.
> 
> Chrome plays 720p on the same connection, no problem.
> 
> Now, I don't have a flash player in FF and I do have one in Chrome. I can't
> say if it's used, but Google chrome helper uses like 55% cpu.
> 
> I think Chrome does NOT use flash player, I don't see the flash process
> running anywhere. Right click on the video while playing, shows a menu when
> I can see a "about the HTML5 player".
> 
> Nerd stats show the video is encoded using VP9 (webm), something Firefox
> does not support.

Does forcing chrome to play AVC also make a difference? ( https://chrome.google.com/webstore/detail/h264ify/aleakchihdccplidncghkekgioiakgal )

Comment 4

[Michal Purzynski [:michal`] (use NEEDINFO)]

It was on OS X.

Now I'm not longer on a poor connection so I cannot test it - do you think using the OS X link conditioner to simulate a low throughput / high latency / high packet loss connection would help?

Comment 5

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Last time we had an issue like this it was related to IPv6. I'm going to move it over to the Networking component on the basis that it is more likely something they can help with.

Comment 6

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Is this issue still reproducible?

Comment 7

[Michal Purzynski [:michal`] (use NEEDINFO)]

I simulated a very bad connection by enforcing 2G when tethering. Both firefox and Chrome gave up on multiple tries.

I can see both Chrome and Firefox reporting webm with VP9 codec and dash enabled on youtube, so this might not be a problem anymore.

Comment 8

[Shian-Yow Wu [:swu]]

Closing this based on the reporter update in comment 7.