Happens with 64-bit Windows 7 Home Premium as well.

I have the same problem on Windows 7 Enterprise with Firefox4b1.

Well at least it isn't just me experiencing this bug/glitch whatever you wish to call it.

Same problem on Win7 Professional 32bit. Iron(im not sure if its chrome related) hat that problem, too in early development stages.

Same issue here with Windows 7 Ultimate (64bit) running.

I have the same problem with both the 32bit and 64bit version of Windows 7 Ultimate. As a temporary fix I just run Firefox in "minimized" mode but stretch it to cover the whole screen.

since last update i think

Same thing on Windows 7 64 bits

windows 7 Ultimate 64bit, same problem ear!

Same problem! (Win7 64bit Home Premium and 64bit Professional)

win7 64, same problem.

It seems that the behavior has to do with Firefox taking an always-on-top precedence over the taskbar - notice that if you restore the Firefox window after being maximized, and THEN make the taskbar unhide, it will unhide BEHIND Firefox UNTIL YOU CLICK on it.

Hope this helps.

Windows 7 64bit here. I noticed that once I click on the taskbar, then switch back to Firefox, Firefox stays 'on-top' (as Yup mentioned). As a result, when Firefox is maximized and the taskbar is set to autohide, the taskbar cannot be moused over to show it.

same problem un-hiding on three different pcs running Windows 7 Pro.

I have the same problem but it only happens if I deselect the Menu Bar and choose the new one button taskbar. OS: Windows 7 Ultimate Firefox version: Mozilla/5.0 (Windows; Windows NT 6.1; rv:2.0b3pre) Gecko/20100721 Minefield/4.0b3pre) -latest version available-

I have the same problem in Windows 7 x64.

same issue here W7 ultimate X64.

glad its not just me then and only started doing this yesterday. Up until then it worked as it should!

Found another "fix" (more of a work around really). It seems to be related to the orange firefox menu tab in the upper left hand corner. If you change back to the normal menu bar (Click the orange Firefox tab, Customize, and check Menu Bar) then the problem seems to go away and the taskbar autohides properly again.

The post above works. Once that happens, you can enable it again and the taskbar works.

There is a bug report concerning this and it is being worked on. There is a patch for this being tested and hopefully will be fixed before beta 3 (no guarantees).

Thanks for that Quarantine. :)