User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3a) Gecko/20021207 Phoenix/0.5 Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3a) Gecko/20021207 Phoenix/0.5 This is a serious usability problem. When a window is open with multiple tabs, clicking "close" on the window closes the window (along with all tabs) without warning you that you have multiple tabs open, and there's no option to enable such a feature. Opera has this feature, and I find it to be most useful. Think this is silly? Consider the following real scenario that's bitten me enough that I've stopped using tabs: You have a web page open which has a list of links in it. Each of the links you click opens another window, and so you get used to closing the new window after you're done with it. Unfortunately, the designer of the page you're reading wasn't totally consistent, and one of the links DOESN'T open a new window. When you're done the what you think is the new window (hey, you're tired and you just developed a habit which is something that user interface designs are supposed to cater to!) and you close the window. What you don't realize until it's too late is that the window you just closed is the original, and you just closed 5 other tabs along with it! Why not look in this History, you say? Because the tabs you had open have been open for a week, and you've done a great deal of browsing since then. Reproducible: Always Steps to Reproduce: 1.open mutiple tabs 2.close the window 3. Actual Results: The browser didn't warn me that I was about to close multiple tabs. Expected Results: Warned me that I was about to close multiple tabs.

*** This bug has been marked as a duplicate of 108973 ***