My wife sent a link to an Amazon product. When I clicked on it the Amazon Smile site from my desk top it came up briefly then went black. Since then, when I bring Smile up again it has different fonts (Times New Roman versus Arial/Calibri), the home page and selecting options like Wish List shows a mish-mash of sentences and images. I tried rebooting Firefox and running the troubleshooting option, same thing. The Amazon Smile site is normal on Chrome and Edge. It is also normal with Firefox on my iPad and iPhone. Would prefer not to uninstall/re-install Firefox on my desk top if there is another option.