372670 - onkeydown for modifiers is only fired every second time

Status: UNCONFIRMED

(Core :: DOM: Events, defect, P5)

Description

[[e-mail]]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2
Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.2) Gecko/20070219 Firefox/2.0.0.2

When using OSX, in certain conditions, onKeyDown events for modifiers (Command, Control, Shift) are fired only every second time.

For example it occurs here:
https://bugzilla.mozilla.org/attachment.cgi?id=95476

but works fine here:
https://bugzilla.mozilla.org/attachment.cgi?id=246186


Reproducible: Always

Steps to Reproduce:
1. Press Control.
2. Press Control again.

Actual Results:  
first press fires event,
second press does not

Expected Results:  
both presses fire event

Comment 1

[[e-mail]]

This is still an issue on:
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9b1) Gecko/2007110903 Firefox/3.0b1

And there's nobody out there who can even confirm this?

Comment 2

[Rene Trost]

This behavior only occurs when you use the javascript alert function to display the status. The keydown/keyup event itself is fired correctly.

The following page uses a differend method to display the status and it works fine there:
http://unixpapa.com/js/testkey.html

  

Comment 3

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.