Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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firefox 4 new tab opens new windows instead

  • 2 antwoorden
  • 207 hebben dit probleem
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  • Laatste antwoord van rpguerra

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.

Alle antwoorden (2)

Start Firefox in Use Troubleshoot Mode in Firefox 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.

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.