The new Firefox 3.5 release brought a lot of great features, but one annoyance sent reader Mark looking for a solution: When you close the last tab, the browser closes instead of opening a blank tab.

Changing the behavior back to the way it used to work is very simple: just type about:config into the address bar and find the browser.tabs.closeWindowWithLastTab entry in the list—using the filter makes it easy. Once you've found that key, double-click on it to change the value from true to false, and Firefox should no longer close when you close the last tab.

Source: http://lifehacker.com/5306497/keep-firefox...ng-the-last-tab

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Moderation: edited for not including the source.

This post has been edited by fariz: Jul 7 2009, 09:58 PM