User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1 Since I upgraded my Firefox earlier today, as per the notification that an upgrade was available, some drop-down menus no longer work. Example, the above webpage drop-down for Year was working perfactly before upgrade and no longer allows a selection. It still works with IE, so it's not the website. Interestingly, some drop-down menus from the main menu at the top of the webpage, work. Reproducible: Always Steps to Reproduce: 1.Stopped Firefox, re-started and same problem 2.Brought up same webpages on IE and it works perfectly 3. Actual Results: open website www.regalboats.com Under Navigate drop-down, select Archive New screen populates and requests to select "Please chose a Year" on a drop-down menu. No longer allows selection of the Year, but did before upgrade this morning Expected Results: Should have dropped down and shown years 2007 2006 2005 2004 to select from

This is a regression from bug 317375.

Needs QA love probably

WFM on Mac. But dropdowns work differently there.

Comment on attachment 335630 [details] testcase Arh, sorry, apparently something went wrong while minimizing, this is worksforme, too.

I guess this is invalid.

Why?

Well, I don't know. Please enlighten me. I guess the relative positioned element creates a stacking context, so I guess it still needs to be on front of the normal div then. http://www.w3.org/TR/CSS21/visuren.html#z-index

Ah, I see! Yeah, the <select> is actually under the enclosing <div>, so the enclosing <div> gets the mouse events. So our behaviour is correct, or at least not incorrect, per spec. If we made elements transparent to events in some cases, that could "fix" this.

Wondering why this is marked as RESOLVED INVALID when in fact it is exactly the same problem today as yesterday, when I logged the bug. It is NOT resolved and look forward to a resolution. Thanks Dave

Because the webpage has layered an invisible element on top of the drop down list meaning that the list doesn't get any mouse clicks