A tab will sometimes disappear while the tab bar remains. This happens sometimes and is somewhat unpredictable. One part that is predictable is when I have multiple tabs on one window, then drag one of the tabs off that window. That tab becomes it's own new window. But the new window has no tabs. See a screenshot here: http://www.legendsrpg.com/funkyfirefox.JPG It's particularly annoying when I then make a new tab on the new window, and only that new tab is present. The only way to tab back to the first tab is to close all the other tabs on that window. To answer your usual questions: -I have tried disabling all plugins, then restarted Firefox, and I can recreate the scenario described above. -I do have "Always show the tab bar" checked -This started when I recently updated Firefox Oh, here's one of the unpredictable times. I had this window open, I opened a new tab in it (everything looked normal), I dragged the new tab off the window, the new tab in the new window disappeared (it's the window in the screen shot). I then disabled the plugins, restarted, and now this window has lost it's tab, just like the other one. Any solutions? Thanks