Strange symbol on MyDrive map!

It's nowhere near my home (which I have set up as Home). When I wish to plan a route using MyPlaces as the destination, the Start is shown as the Woodley address.
I have deleted all reference to the programme in my browser - FireFox but when opening the programme and logging in, its there. How do I prevent this?

Comments
Superuser
Does it show a similar location using other browsers? Where does https://maps.google.co.uk think you are? What about https://whatismyipaddress.com/?
If all are suggesting the same (incorrect) place, it may be an issue with your Internet service provider.
Thank you for your quick response and yes, you may be right as I've checked this on Chrome and the symbol doesn't show. Neither google maps nor whatismyaddress agree - one says I'm in Slough (which I'm not) and the other didn't seem to know where I am! The wonders of moderfn technology!
So, it seems that I will have to use Chrome for MyDrive in future.
Best regards
Superusers
@Holmergreeny
Its not where you live It's where your Internet Provider connects to the Internet
Using google Earth, and viewing where the MyDriveWeb Route planner thinks that I'm located
It shows as small building at the the end of a Cul de sac, in a different Town 30 miles away from where I live
Firefox to Allow/Block location sevices...
Screen top right Tap 3Lines Icon -> Options -> Privacy & security -> Permissions -> Location -> Settings... https://mydrive.tomtom.com 'Allow/Block' -> Save Settings
ATB YFM
Thank you for your advice and information.
I had already followed - more or less - the 'directions' to 'Allow/Block' the location settings and naturally the symbol no longer features. Simples really (when you know how!)
Thank you again