User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b3) Gecko/2008020513 Firefox/3.0b3 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b3) Gecko/2008020513 Firefox/3.0b3 The test code under FF2.0.0.10 gives no errors while in FF3B2/3 gives: Error: uncaught exception: Permission denied to get property XULElement.firstChild Reproducible: Always Steps to Reproduce: 1. use this test.xul <?xml version="1.0"?> <?xml-stylesheet href="chrome://global/skin/" type="text/css"?> <window sizemode="maximized" xmlns:html="http://www.w3.org/1999/xhtml" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <button tooltiptext="New"/> </window> 2. in Error console I get: Error: uncaught exception: Permission denied to get property XULElement.firstChild 3. Actual Results: Error: uncaught exception: Permission denied to get property XULElement.firstChild Expected Results: no errors

Regression from the recent accessibility in popups changes. tooltip should extend from popup-base

(In reply to comment #2) > Regression from the recent accessibility in popups changes. > Hmmm. maybe not. not sure

Can't see an obvious way to test this, as binding inheritance info isn't scriptable

Comment on attachment 312790 [details] [diff] [review] fix binding inheritance You might be able to test it in a browser chrome test by listening to the console and triggering a tooltip.