I would give less than one star but it's not possible. I tried to choose a baseball theme but every time I type that into the search box (and I'm up to 7 attempts), it gives thousands of results but under the "extensions". I can't get a theme I prefer and can't seem to do anything about it.

This is after having to uninstall/reinstall Firefox for a completely different issue.

I'm about to go back to Chrome. Less stress!