bowflow Reporter
	Description • 7 years ago

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20170302120751

Steps to reproduce:

Example:
http://winfuture.de/news,96550.html

just want to fast-forward the Video a little bit leads to a black screen in Firefox 64bit, while sound is still playing.... In FF-32 it works fine....
With F5 you can reload the page. Until you do not fast forward the Video, everything is fine. Youtube also works, but I find this bug on many other sites. 



Actual results:

Screen turns black and sound stays playing....


Expected results:

normal video replay, like in FF-32

	bowflow Reporter
	Comment 1 • 7 years ago

Maybe this is an Adobe Flash 64-bug, cause it concerns videos from Adobe flash...

	yxu
	Comment 2 • 7 years ago

Some users feedback that when visiting the live sites, if you move the mouse over the flash element, the video will turn black. It resumes display when minimize the Firefox window or switch the tab.I think it might be the same type of problem. But I can't reproduce it.

The URL of this problem:
https://www.douyu.com/74706
http://www.panda.tv/442657

The user's display see attachments.

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:52.0) Gecko/20100101 Firefox/52.0
Build ID: 20170302120751

operating system: windows 10 pro 64-bit(10.0, build 10586)

	yxu
	Comment 5 • 7 years ago

Many people have recently encountered this problem. Around updated Firefox 52 or Flash 25? I'm not sure which is more related.

I found some discuss in adobe community: https://forums.adobe.com/community/flashplayer/using_flashplayer/content?filterID=contentstatus%5Bpublished%5D~objecttype~objecttype%5Bthread%5D&query=firefox

and there is also a flash bug: https://tracker.adobe.com/#/view/FP-4198373

	Jim Mathies [:jimm]
	Comment 6 • 7 years ago

I'm betting this is probably fixed in the latest flash release. Can someone confirm? I'm not able to reproduce on the test sites here.

	yxu
	Comment 7 • 7 years ago

(In reply to Jim Mathies [:jimm] from comment #6)
> I'm betting this is probably fixed in the latest flash release. Can someone
> confirm? I'm not able to reproduce on the test sites here.

I can't reproduce the problem either. According to the vast majority of the feedback, the problem disappeared after the user upgraded to firefox 53. I think we can mark it has been resolved.