Why am I always showing web player on spotify?

Have been around for several months the problem that when I open sometimes spotify I see that someone is listening to the music. Or while I'm listening to music it suddenly changes to any song. Have the password already changed but it does not go away. And I have otherwise only connected my laptop but it can't be that the laptop runs by itself. Can you help me somehow? Have somehow the feeling that someone has access to all my data because otherwise he would never know my changed password. Or is it a bot?

Vll have you logged in somewhere in the webplayer at Firefox times and not logged off can be on a PC phone or eg FireTV Stick, etc

Do not use a firefox

Vll did you use the Webplayer with a friend of yours. However, if the music itself just plays something else, someone would have to sit there and also what to press. Of course it can be hacked somehow. It's best to log into the Spotify site and log out all devices.

I logged out of all devices but is still there. Not only firefox but google and the thing is NO access to my acc except me.