Everyone is raving about the tabbed browsing feature in Firefox. While I do agree that its a powerful and cool feature, I have noticed a couple of shortcomings. Firefox turns into a memory hog and slows down the machine when you have a number of tabs. Secondly, when you click the dreaded x mark to kill a tab it doesn’t prompt you. Instead it just kills the tab without prompting! On more than one occasion I have lost useful work because of this. I wish they would prompt the user before killing the tab! Firefox is nevertheless a cool browser! (at least until MS IE 7.0 is out!)
Pakora Korner 
The memory hogging (and CPU usage) goes through the roof if you have Flash or Java running on any tabs.To recover from accidental tabicide, I recommend this.
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That was helpful. Installed my first Firefox extension. Thanks!-Pran
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