Show the issue. I see names. see screenshot

Here is the screenshot

Not seeing the issue. see screenshot

Did you try with Firefox in Troubleshoot Mode? https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode#w_how-to-start-firefox-in-4troubleshoot-modesf5safe-modesf

Are you running any security software besides MS Defender?

Windows home or pro? If Windows Pro version, try testing in Windows Sandbox (VM) to see if you have the same issue. https://www.howtogeek.com/399290/how-to-use-windows-10s-new-sandbox-to-safely-test-apps/

Hi. I already tried troubleshooting mode. This made no impact. I am on Windows 11 Home. Please see screen shot from Chrome on the same computer showing all the labels. Also, I noticed that (see screenshot) that the ability to toggle the "Labels" at the bottom right corner doesn't work-- it is grayed out in Mozilla.

Finally, the weird thing is that the labels show for about 1 second in Mozilla and then the disappear from the map.

Any other ideas?

see if this helps. https://www.google.com/search?q=google+maps+labels+not+showing+in+firefox&client=firefox-b-1-d&hs=Mlg9&sca_esv=993938920d5f800b&ei=qM1IaaqzEuSe5NoP7K7XuAE&ved=0ahUKEwiqp9WgstCRAxVkD1kFHWzXFRcQ4dUDCBE&uact=5&oq=google+maps+labels+not+showing+in+firefox&gs_lp=Egxnd3Mtd2l6LXNlcnAiKWdvb2dsZSBtYXBzIGxhYmVscyBub3Qgc2hvd2luZyBpbiBmaXJlZm94MgUQIRigATIFECEYoAEyBRAhGKABMgUQIRigATIFECEYqwIyBRAhGJ8FSJwkULMKWJkicAJ4AZABAJgBmgGgAe8IqgEDOS4zuAEDyAEA-AEBmAIOoAKyCcICChAAGLADGNYEGEfCAg0QABiABBiwAxhDGIoFwgILEAAYgAQYkQIYigXCAgYQABgWGB7CAgsQABiABBiGAxiKBcICBRAAGO8FwgIHECEYoAEYCpgDAIgGAZAGCZIHBDExLjOgB7JAsgcDOS4zuAenCcIHBTAuNi44yAcngAgA&sclient=gws-wiz-serp