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Tabs are not working. When I click to open a new tab, no new tab comes up. Tried restarting computer and updating Firefox, this didnt' help.

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Tabs will not open when I click to open one. I've been shuffling back and forth between two separate Firefox windows - it really sucks. Please help!

Tabs will not open when I click to open one. I've been shuffling back and forth between two separate Firefox windows - it really sucks. Please help!

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Caused by the Ask Toolbar extension in Firefox 3.6.13 and above, disable that extension or un-install it.