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I cant open a second tab

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When I click the + for a second tab or press Ctrl+T nothing happens. It wasn't a problem in the past but since about 2 weeks ago it stopped working. Best regards

When I click the + for a second tab or press Ctrl+T nothing happens. It wasn't a problem in the past but since about 2 weeks ago it stopped working. Best regards

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The Ask Toolbar is causing that in the Firefox 3.6.13 version. Evidently something in that extension isn't compatible with a Firefox security fix. Disable that extension or un-install it.