[Bug 39899] New: 64-bit Flash Player 20 does not function on 64-bit Firefox 43

https://bugs.winehq.org/show_bug.cgi?id=39899

Bug ID: 39899
           Summary: 64-bit Flash Player 20 does not function on 64-bit
                    Firefox 43
           Product: Wine
           Version: 1.8
          Hardware: x86
               URL: https://get.adobe.com/flashplayer/otherversions/
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Ubuntu

Created attachment 53288
  --> https://bugs.winehq.org/attachment.cgi?id=53288
Wine messages from onlinemictest.com test page reload

Xubuntu 14.04 x86_64
Adobe Flash (NPAPI) 20.0.0.235
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:43.0) Gecko/20100101 Firefox/43.0

Shows up in about:plugins as:

Shockwave Flash

File: NPSWF64_20_0_0_235.dll
    Path: C:\windows\system32\Macromed\Flash\NPSWF64_20_0_0_235.dll
    Version: 20.0.0.235
    State: Enabled
    Shockwave Flash 20.0 r0

MIME Type    Description    Suffixes
application/x-shockwave-flash    Adobe Flash movie    swf
application/futuresplash    FutureSplash movie    spl

1. Install Firefox 43 (https://ftp.mozilla.org/pub/firefox/releases/)
2. Install Adobe Flash Player 20 NPAPI
(https://get.adobe.com/flashplayer/otherversions/)
3. Connect webcam and verify operation with native tools (xawtv, vlc)
4. Browse to a Flash site like:
https://webcamtoy.com/app/
https://www.onlinemictest.com/webcam-test-in-adobe-flash
5. I see nothing.  Right-clicking within Flash frame does not show a Flash
context menu.