Middle click and drag no longer working

For some reason, with no prompting I'm aware of, the click and drag scrolling feature of the middle mouse button has stopped working, solely in Firefox. It works fine in other programs, such as Steam or Edge. The error persists across multiple mice, and while in troubleshoot mode. Middle click by itself does work, opening and closing tabs with no issues. I'm fully updated, both Windows and Firefox. I haven't tried reinstalling yet, but I wanted to ask if there was any other known fix I didn't manage to find.