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I am unable to open a new tab in Firefox 16.0.2 - clicking the + does noting and the "New Tab" option is greyed out.

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Unable to open new tabs - "+" button does nothing, "New Tab" option is greyed out in "File" menu and keyboard shortcut doesn't work either.

Unable to open new tabs - "+" button does nothing, "New Tab" option is greyed out in "File" menu and keyboard shortcut doesn't work either.

Solución elegida

Hello JonnieW

check it in Safe Mode, in Safe Mode window select "Start in Safe Mode" and see if this happen again, if not see: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems


thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

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Check it out the Tab Prefeences in Settings. try CTRL+T for new tab

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Solución elegida

Hello JonnieW

check it in Safe Mode, in Safe Mode window select "Start in Safe Mode" and see if this happen again, if not see: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems


thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.