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Firefox not acting as expected

Rob replied
Rob

I am running Firefox 148.0 and Thunderbird 148.0. I am in the process of moving everything to a new (to me) computer that will run Windows 11. When I start Firefox from the start menu or the taskbar everything runs as expected. I have the Adblock Plus extension plus several others running. If I click on a Hyperlink in a email in Thunderbird instead of opening in a new tab into the currently open copy of Firefox as it did on my old computer running Windows 10 it opens in a new window with no extensions. I am assuming that I have something set incorrectly. Any help as to where I should look to fix this issue would be greatly appreciated.

I am running Firefox 148.0 and Thunderbird 148.0. I am in the process of moving everything to a new (to me) computer that will run Windows 11. When I start Firefox from the start menu or the taskbar everything runs as expected. I have the Adblock Plus extension plus several others running. If I click on a Hyperlink in a email in Thunderbird instead of opening in a new tab into the currently open copy of Firefox as it did on my old computer running Windows 10 it opens in a new window with no extensions. I am assuming that I have something set incorrectly. Any help as to where I should look to fix this issue would be greatly appreciated.
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I fixed the hyperlink issue by uninstalling and reinstalling Firefox

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Hi Rob,

Is that new windows a Firefox window? If so, you can make sure "Open links in tabs instead of new windows" is checked in Settings.

Thanks for your reply, I thought to myself after reading your response "how did I miss that". Well I didn't, it WAS checked in settings. How do I tell if it is a real Firefox window? It apperars to be real it also shows up in the taskbar as a second Firefox window.

Well, trying to rule out TB... Does the same happen when you open links from other apps?

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I fixed the hyperlink issue by uninstalling and reinstalling Firefox

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