User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 Build Identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1 Menu items with type="radio" attribute do not display the respective check mark when they are selected. Only occurs on OS X with FF4. Reproducible: Always Steps to Reproduce: Based on the attached test file 1. open the file 2. open the toolbarbutton drop down menu 3. select any of the options 4. open the toolbarbutton drop down menu again Actual Results: The selected option does not display the respective check mark on its left Expected Results: The selected option displays the respective check mark on its left

Use this test file to reproduce the problem with radio-typed menu items

I can confirm this happens on 4.0 and not on 3.6. I didn't confirm that it works on 4.0 on other platforms. Also note that the menuitems from the main menubar (like in View > Page Style) work correctly. To try the testcase on 4.0, you need to set the preference "dom.allow_XUL_XBL_for_file" to true.

Forgot to mention the cause: the menuitem element has a child box that has its background-image property set to the check icon. For some reason the width of this box is set to 0 by default, except for the main menuitems as mentioned in comment #2. Setting the width to some other value with CSS fixes the problem.

I would say it's a dupe of bug 643184. Roc or Markus, do you agree with?

Yes although comment #3 has more data than that bug.

We have an ongoing discussion re blocking on bug 643184. So I have blockquoted Jorges comment on bug 643184 and we can mark it as dupe. Thanks Roc.