Cypress could not connect to Firefox.

An unexpected error was received from Marionette: connection

To avoid this error, ensure that there are no other instances of Firefox launched by Cypress running.

Error: fail whale
    at makeErr (cypress/packages/errors/test/unit/visualSnapshotErrors_spec.ts)
    at FIREFOX_MARIONETTE_FAILURE (cypress/packages/errors/test/unit/visualSnapshotErrors_spec.ts)