We had a power outage this evening while I was on the computer, and now, all of a sudden, when I open a site in a tab, the tab itself fails to display the site's favicon when applicable, but the icons display without any issue in both the address bar and in bookmarks. Is there any way to fix this without having to reinstall?

The same issue occurred yesterday while reinstalling Firefox after I had to reinstall Windows. But after reinstalling Windows a second time, things worked in Firefox fine, up until said power outage.