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Why is 'Open link in new tab' suddenly opening a new window?

Hasan 已回复
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When I right click, and choose 'Open link in new tab', it instead opens the link in a new window. This happened suddenly with seemingly no cause. I have checked and double checked the option "Open new windows in new tabs instead" but it was checked. How can I fix it?

When I right click, and choose 'Open link in new tab', it instead opens the link in a new window. This happened suddenly with seemingly no cause. I have checked and double checked the option "Open new windows in new tabs instead" but it was checked. How can I fix it?

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

None of my add-ons are causing the problem.

Starting Firefox in Safe Mode for the second time seems to have worked. Thanks

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