In Firefox, you can prevent it from using site data and cookies. This also has the advantage of reseting the count of the number of articles that you can read when you close the tab.
1. Open about:preferences
2. Go to Privacy & Security
3. Under Cookies and Site Data, click on 'Manage Exceptions'
4. Enter medium.com, click Block and then Save Changes.
1. Open about:preferences
2. Go to Privacy & Security
3. Under Cookies and Site Data, click on 'Manage Exceptions'
4. Enter medium.com, click Block and then Save Changes.