when watching a stream on twitch.tv the video is jittery




2 years ago
2 years ago


(Reporter: robloxtechguy321@gmail.com, Unassigned, NeedInfo)


42 Branch
Windows 10

Firefox Tracking Flags

(Not tracked)





2 years ago
User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:42.0) Gecko/20100101 Firefox/42.0
Build ID: 20151029151421

Steps to reproduce:

I went to http://www.twitch.tv/yogscast
I watched the stream and it was jittery

Actual results:

The stream looked like it was lagging
I tried on chrome and was not jittery

Expected results:

The stream should look less jittery or not at all


2 years ago
OS: Unspecified → Windows 10
Hardware: Unspecified → x86_64
I have tried this issue in http://www.twitch.tv/yogscast
It's seems fine for me on linux, 64 bit with latest Nightly 45.0a1 (2015-12-06) ( Build ID: 20151206030448)!

Can you try to reproduce it with a new profile?
see how to open new profile, https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

And also see what happens in safe mode?
see how to open safe mode, https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
QA Whiteboard: [bugday-20151207]
Flags: needinfo?(robloxtechguy321)

Comment 2

2 years ago
Intermittently reproduce this issue on http://www.twitch.tv/yogscast with Nightly 45.0a1 (2015-12-13), on Windows 8.1: indeed, in the first video, the speaker was jittery in FF, but with Chrome too; bug is 50% reproducible, each time i launch it
Nevertheless, I couldn't reproduce it every time, even by emptying my cache and continuing testing, i saw that video wasn't fluid sometimes on Chrome.

And I never seen any problem on other videos of this site, or other sites, like this one: http://www.boursorama.com/bourse/

$ cat cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 60
model name      : Intel(R) Pentium(R) CPU G3258 @ 3.20GHz
stepping        : 3
cpu MHz         : 3200.000
cache size      : 3072 KB

Windows 8.1 x64

Thanks to Adalucinet for help. :)

Comment 3

2 years ago
Build ID 	20151213030241
User Agent 	Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0

I have tested this on Win 10 x64 with FF Nightly 45.0a1(2015-12-13) and I can't reproduce this issue, I also try on Chrome and it works. Are you sure that this is not a site issue?
Please try what Nazir suggested in comment 1.

Comment 4

2 years ago
Windows 8.1 x64 
Nightly 46.0a1 (2015-12-15)
Bug not reproduced with a clean profile.
Not reproduced too on previous profile (Note: I updated Nightly from 45 to 46)

Comment 5

2 years ago
Marking this as Resolved: WFM based on comment 4 and comment 3. Also please follow the steps from comment 1. 
Reporter, please feel free to reopen it if you are still having this issue on the latest Firefox version.
Last Resolved: 2 years ago
Resolution: --- → WORKSFORME
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