Hello! I’m happy to answer your questions!
Check if there are similar situations on other web pages. If it is determined to be a problem with Firefox, you can try the following operations:
1. Use Ctrl F5 to refresh the page
2. Press ctrl shift del to bring up Firefox's built-in clear recent history tool (or press the alt key to pop up the menu, Tools - "Clear recent history"), and then choose to clear all caches and cookies
You can learn more in the Firefox Community. I hope my answer will be helpful to you. If you have any questions, please feel free to continue to consult on this platform.