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firefox 4 new tab opens new windows instead

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  • 207 have this problem
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  • Last reply by rpguerra

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After upgrade to Firefox 4, the feature "mouserightclick-open new tab" opens a new window, instead. From then on, all "open new tab" operations open new tabs in the other window, the second one created.

After upgrade to Firefox 4, the feature "mouserightclick-open new tab" opens a new window, instead. From then on, all "open new tab" operations open new tabs in the other window, the second one created.

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Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Appearance/Themes).

  • Don't make any changes on the Safe mode start window.

See:


The two context menu entries to open links in new window and a new tab were swapped in Firefox 4 to promote using tabs in case you noticed the change.

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Thanks for the hint, cor-el , but problem persisted even with all Add-ons disabled. But after some 8 days and several O.S. reboots, the problem disappeared . No action was taken, I suppose that it was some bug that the developers corrected. Issue solved.