Closed Bug 1239406 Opened 4 years ago Closed 4 years ago

Flash AS2 key press not detected in 64bit versions


(Core :: Security: Process Sandboxing, defect)

43 Branch
Not set



Tracking Status
firefox44 --- wontfix
firefox45 --- wontfix
firefox46 --- wontfix
firefox47 --- wontfix


(Reporter: csamborski, Unassigned)



(Keywords: 64bit, regression)


(1 file)

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160112004003

Steps to reproduce:

I tried to play to the original Meat Boy (flash game) at:

This also happened when trying to play to:
Meat Boy (map pack):
Attached file: (see above) (reuploaded from

Actual results:

When I open one of those file in Firefox (it works with the standalone player or other browsers), my keyboard inputs are not detected. For example, in the attached demo "Key.isDown(Key.LEFT)" always displays false even if I press the left arrow.

Expected results:

I expect the Flash Player in Firefox to detect when a key is down.
(The attached file should display true when the left arrow is pressed, and the games should just work).

This is the exact repetition of this previous bug I filed:
Component: Untriaged → Plug-ins
Product: Firefox → Core
WFM with FF45 protected mode on/off e10s on/off.
Works fine in 32bit versions, not works in 43.0 64bit.
Ever confirmed: true
Keywords: 64bit
Summary: Flash AS2 key press not detected → Flash AS2 key press not detected in 64bit versions
Whiteboard: [DUPEME]
Any updates ?
As I mentioned in the first post, this is issue was already reported and solved a few months ago. Now that it is broken again (regression ?), isn't it possible to solve it with the same patch ?

I wanted to try again (I checked the meat boy link) and I noticed that the Enter key seems to be detected but not the other keys (space, arrows).

I get that HTML5 is promoted instead of Flash, but there is still content relying on this technology. I love the politics of Firefox so I will stick with it, but for persons wanting to just use these flash animations, I'm afraid that it might incite them to jump for competitors :/
Only the 64b version is affected.

Reg range:
Blocks: 1185532
Component: Plug-ins → Security: Process Sandboxing
Flags: needinfo?(bobowen.code)
Keywords: regression
OS: Unspecified → Windows
Whiteboard: [DUPEME]
Version: 45 Branch → 43 Branch
Unfortunately, we don't have a solution for this old Flash content with our NPAPI sandbox enabled, which it is on 64-bit.

The previous bug was used to track fixing 32-bit, which was also broken in pre-release for a while.
Closed: 4 years ago
Flags: needinfo?(bobowen.code)
Resolution: --- → DUPLICATE
Duplicate of bug: 1180684
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