Is this an embedded Google map on your site? You might need to give permission both to your site and to Google in this case.

If you click the globe/padlock icon on the address bar, then click More Information, then click into the Permissions panel, do you have "Access your location" allowed for your site?

Then try right-clicking the embedded map and choose This Frame > Open in New Tab. In this tab, check the permissions for the host of the embedded map.

Then reload your page containing the embedded map using Ctrl+Shift+r to bypass cached files. Any improvement?

Is part of it cut off?

• Bug 980557 - geolocation app bar notifications don't fit in portrait mode

And for a general test you can try the mdn test as well Live Result