Hi @saurav03,
Welcome to the Community!
We have a newer SPA library, auth0-spa-js, that will allow you to use refresh token rotation to avoid issues related to 3rd party cookies being blocked.
This should solve the issue, but you will need to migrate over to this newer library. There are some features that still require auth0.js, so you will have to take a look at the differences and decide if you want to migrate.
Hope this helps,
Dan