User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0b12pre) Gecko/20110203 Firefox/4.0b12pre Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b12pre) Gecko/20110203 Firefox/4.0b12pre As per bug 628807, we currently have a delay that prevents split menu entries from closing immediately when the cursor exits the menu. Can we make the delay also happen when mousing between split menu entries and regular menu entries? For example, hover over Options and wait for the submenu to appear. Then quickly mouse over to addons and then back over to Options before the submenu disappears. You'll see that even though there's a delay before the Options submenu closes, you can't make it stay open. The delay in this case is rendered useless and gives users the false impression that they have a short period of time to return to the submenu after accidentally mousing over something else. Reproducible: Always Steps to Reproduce: 1. Mouse over Options split-menu and wait for submenu to appear 2. Mouse over to addons and then quickly back over to Options before the submenu disappears. 3. Note that even though your mouse is back on Options, you can't make the submenu stay open. Actual Results: Options menu disappears even though mouse is back on the split menu entry Expected Results: Options menu stays open if mouse is back on split-menu before menu delay expires.
This will probably be fixed by bug 628819, although that won't happen in time for Firefox 4.
Is this actually a valid bug? I get the same behavior when moving from a proper <menu> to a <menuitem> and back.
Not really sure why you marked this as invalid. Re-mousing over a split menu should reopen it. Regular submenus have this behavior.
Comment 0 says it should stay open. Now you're saying it should reopen. But it actually does reopen over here. Do you have steps to reproduce where it doesn't?
The steps to reproduce are in comment 0. Open the Firefox menu, mouse over Options and wait for the splitmenu to appear. Then in less than a second mouse over to Addons and then back to Options. The Options menu should stay open, but currently it closes. I should point out that I am mousing over Options itself, not its submenu. Going from Addons to the submenu does make it stay open.