As usual, a dot release has been planned to fix issues found in Firefox 51. Apparently, in version 51, Geolocation isn’t working, Mozilla will anytime release Firefox 51.0.1 to address this, which could also come with fixes to other issues discovered by the Firefox team.
By this time, if you’re using version 51, visit this Gelocation live example link (Mozilla’s), scroll down until you see ‘Live Result’, under it, click ‘Show my location’, give the permission, as shown in the screenshot Firefox shows ‘unable to retrieve your location’ error. You’ll receive an update when the company publishes the version and you can also able to download the same from Mozilla Firefox site when available.
Firefox 51.0.1 release notes (
not working at the moment).