User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:32.0) Gecko/20100101 Firefox/32.0 (Beta/Release) Build ID: 20140606030206 Steps to reproduce: On the latest Ubuntu, define an onmouseout event on a XUL document like alert.xul (the document that specifies how HTML5 notifications appear). Happens within a virtual machine (Ubuntu) and native install of Linux (Raspbian). If you need any easy way to test this you can install my WIP extension: https://github.com/deltaburnt/BetterNotifications Set alert display time in the options to about 10000, hover over a new notification and notice that the progress bar to the left stopped, then hover out and it doesn't continue. This is because onmouseout event is not firing. Actual results: The event is never fired. Expected results: It works perfectly on Windows as far as I can tell, and it appears to just never call the event I define.
Could you perhaps attach a _minimal_ testcase
(In reply to Olli Pettay [:smaug] from comment #1) > Could you perhaps attach a _minimal_ testcase What is the optimal way of doing this? Would a small bootstrapped extension that creates an alert or console log in onmouseout work?
I guess that would work.
It appears it actually is calling the function, it's just my tests were flawed. For some reason I couldn't log to console from those events. Sorry to waste your time.