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Firefox opens new window not tab

New Contributor

Firefox opens new window not tab

Firefox opens a new window rather then tab from any other process calling firefox. Example screen grab utility needs to load a new url. FF opens a new instance of firefox. It use to open a new tab.

Site Moderator

Re: Firefox opens new window not tab

This issue can be caused by an extension that isn't working properly.

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe mode start window or otherwise make changes.