User-Agent: Mozilla/5.0 (X11; Linux i686; rv:2.0b9) Gecko/20100101 Firefox/4.0b9 Build Identifier: Mozilla/5.0 (X11; Linux i686; rv:2.0b9) Gecko/20100101 Firefox/4.0b9 When i have more than one group in Panorama, each group with multiple tabs, whenever i close one tab, and try to reopen using the shortcut shift+ctrl+T, the closed tab come back in a new panorama group, where it should reopen on the original group. Reproducible: Always Steps to Reproduce: 1. Open firefox 2. Ctrl+E and create a new group 3. On the new group, create two tabs, open any website on any tab. 4. ctrl+w to close the tab (or middle click) with any website. 5. Press ctrl+shift+T to reopen closed tab. Actual Results: Using the steps above, the closed tab opens in a new group, if i hit ctrl+e to see panorama, i get 3 groups instead the original 2, and the reopened tab is the only one in the new group. Expected Results: The closed tab reopen in the group it was before closed (or reopen in the focused group). Updated from 4.0 beta 8, didn't tested in a brand new beta 9 install.