Created attachment 502772 [details] screenshot Build ID: Mozilla/5.0 (Windows NT 6.1; rv:2.0b9) Gecko/20100101 Firefox/4.0b9 Steps: 1. Navigate some pages in a few tabs 2. Open panorama view and make sure tabs are part of a group 3. Close the group 4. Immediately press F11 to enter fullscreen mode 5. Click on "Undo close group" Behavior: Group UI is broken when undo close group is triggered from fullscreen mode. See screenshot
That sucks, but it's a bit corner-case-ey.
Mozilla/5.0 (Windows NT 6.1; rv:2.0b10pre) Gecko/20110117 Firefox/4.0b10pre Able to reproduce. Panorama view is broken after clicking on undo close group in fullscreen mode.
Mozilla/5.0 (Windows NT 6.1; rv:6.0a1) Gecko/20110504 Firefox/6.0a1 I can also reproduce the issue on the latest trunk using the following steps: 1. Open a few tabs 2. Go into Panorama 3. Close the group that contains all the tabs 4. Press Undo close tab This is reproducible on non-Fullscreen scenarios also.
Will be fixed by bug 654941.
Mozilla/5.0 (X11; Linux i686; rv:7.0a1) Gecko/20110620 Firefox/7.0a1 Verified issue on Ubuntu 11.04 x86, Mac OS X 10.6, Win7 x86 and WinXP using the steps from comment 3. Setting status to Verified Fixed.