User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:2.0b4pre) Gecko/20100816 Minefield/4.0b4pre (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows NT 5.1; rv:2.0b4pre) Gecko/20100816 Minefield/4.0b4pre (.NET CLR 3.5.30729) I accidentally closed a tab so I hit Ctrl+Shift+T. This caused all my other tabs to disappear and I was left with only the reopened tab available. If I close the reopened tab then I get to see one other tab by itself. The only way to get my tabs back seems to be to open the group window and click on one of the tabs. Reproducible: Always Steps to Reproduce: 1. Open several tabs, then close one 2. Hit Ctrl+Shift+T 3. Be disconcerted because all your tabs disappeared Expected Results: Tab opens in its old position as before.

Please update to the latest nightly (20100817 build).