If you got this error in your firefox browser then the main reason is:
Firefox can be set to not accept cookies.
The output will give us this:
1 | https://accounts.google.com/CookieMismatch |
To fix this error just go at the top of the Firefox window.
Click on the Edit menu and select Preferences.
Select the Privacy panel.
Set Firefox will Use custom settings for history.
Make sure Accept cookies from sites is check marked.
Make sure Accept third party cookies is check marked.