hi @costas,
I’ve tried that and it worked a treat - thanks 
. For others’ benefit - here’s a summary of what I did.
I was getting the ’ ‘NoneType’ object is not iterable’ error which happens when an invalid cookie file is created.
- Using a different machine with a gui and python installed (it was a linux VM, but probably could be your main windows machine, if you install python)
- I installed mapscookiegettercli with ‘pip3 install maps cookiegettercli’
- Then ran maps-cookie-getter from my ~/.local/bin folder
- That loaded up firefox browser and asked me to log in to google
- I logged in with the user that I want home assistant to use for tracking and closed the browser
- I copied the file location_sharing.cookies to my home assistant config folder (same folder as configuration.yaml) and renamed it to overwrite the existing cookies file.
- config/.google_maps_location_sharing.cookies.google_user_gmail.com (the last bit depends on your google user ID)
- I restarted home assistant - it worked!
- I did not update locationsharinglib but am still using the same version that ships as standard with home assistant