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

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?

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

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.