1305526 - The new Firefox update 49 makes my flash player flicker or freezes whenever I scroll with the scroll wheel.

Status: RESOLVED INVALID

(Core Graveyard :: Plug-ins, defect)

Description

[sth111111]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:48.0) Gecko/20100101 Firefox/48.0
Build ID: 20160823121617

Steps to reproduce:

Firefox updated to 49.


Actual results:

Whenever I scroll down while I am playing a game, like a flash game, the game would just flicker whenever im scrolling with the wheel button. It isnt anything else that is causing the problem im sure because when I used revert back to the old update the game didn't do that.


Expected results:

The game shouldn't have flicker whenever I scrolled.

Comment 1

[Alice0775 White]

@repoter

Could you test with Beta50.0b1 Developer edition51.0a2 or Nightly52.0a1?

[1] https://www.mozilla.org/en-US/firefox/channel/#beta
[2] https://www.mozilla.org/en-US/firefox/channel/#developer
[3] https://nightly.mozilla.org/

Comment 2

[Masatoshi Kimura [:emk]]

Please also test with dom.ipc.plugins.asyncdrawing.enabled set via about:config.

Comment 3

[sth111111]

(In reply to Alice0775 White from comment #1)
> @repoter
> 
> Could you test with Beta50.0b1 Developer edition51.0a2 or Nightly52.0a1?
> 
> [1] https://www.mozilla.org/en-US/firefox/channel/#beta
> [2] https://www.mozilla.org/en-US/firefox/channel/#developer
> [3] https://nightly.mozilla.org/
I tested it now with the beta 50 version and it does not seem to flicker whenever I scroll now. But the difference is I have to click outside my game in order to scroll. I am pretty sure I didn't have to do that in the past. Is that a new feature?

Comment 4

[sth111111]

(In reply to sth111111 from comment #3)
> (In reply to Alice0775 White from comment #1)
> > @repoter
> > 
> > Could you test with Beta50.0b1 Developer edition51.0a2 or Nightly52.0a1?
> > 
> > [1] https://www.mozilla.org/en-US/firefox/channel/#beta
> > [2] https://www.mozilla.org/en-US/firefox/channel/#developer
> > [3] https://nightly.mozilla.org/
> I tested it now with the beta 50 version and it does not seem to flicker
> whenever I scroll now. But the difference is I have to click outside my game
> in order to scroll. I am pretty sure I didn't have to do that in the past.
> Is that a new feature?
Now I had to go back to the old version because after 1-2 minutes of playing a game on the beta one it just was unresponsive.

Comment 5

[Michelle Funches - QA]

@Reporter, can you please send me the URL to the flash games? Also please tell me the version of Adobe Flash that is installed.
In the meantime I will run some test with Flash games applying Fx49 and Flash 23.0.0.162. Thanks.

Comment 6

[sth111111]

(In reply to Michelle Funches - QA from comment #5)
> @Reporter, can you please send me the URL to the flash games? Also please
> tell me the version of Adobe Flash that is installed.
> In the meantime I will run some test with Flash games applying Fx49 and
> Flash 23.0.0.162. Thanks.

Flash 23.0.0.162 is the version im using. Also it is happening with every flash game I play. I even go on different websites and it still does the same thing. Here is a flash game the bug happens on http://www.y8.com/games/mega_mechs_assembling.

Comment 7

[Michelle Funches - QA]

Reproducible: yes I can reproduce applying the site http://www.y8.com/games/mega_mechs_assembling.

dom.ipc.plugins.asyncdrawing.enabled set to true, I cannot reproduce

I also tested  dom.ipc setting at false with e10s disabled and was able to produce an unresponsive plugin script message for Shockwave Flash
Version 	49.0.1
Build ID 	20160922113459
User Agent 	Mozilla/5.0 (Windows NT 6.1; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0

Comment 8

[Masatoshi Kimura [:emk]]

Bug 1305135 will fix this given that the asyncdrawing pref had an effect.

Comment 9

[Jim Mathies [:jimm]]

This is by design since we hide plugin windows for scrolling. However Firefox doesn't appear to be rendering window captures with this particular flash game. I'll look into this to see if it's more wide spread.

Comment 10

[Jim Mathies [:jimm]]

(In reply to Jim Mathies [:jimm] from comment #9)
> This is by design since we hide plugin windows for scrolling. However
> Firefox doesn't appear to be rendering window captures with this particular
> flash game. I'll look into this to see if it's more wide spread.

Retesting with a clean profile on release shows that the thumbnailing code is working. So things are working as expected.