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Restoring Maping of Mouse Button

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I got the new update (92.0) this morning and now I have an issue with my mouse. Previous versions of Firefox was outputting my 5th mouse button as a hotkey for closing tabs, but now it's functioning as a back button. My scroll-wheel button (Button 3) now closes tabs. How can I restore their original functions? Can it be done through about:config?

I got the new update (92.0) this morning and now I have an issue with my mouse. Previous versions of Firefox was outputting my 5th mouse button as a hotkey for closing tabs, but now it's functioning as a back button. My scroll-wheel button (Button 3) now closes tabs. How can I restore their original functions? Can it be done through about:config?