Cross Browser Testing is the practice of testing your website's functionality and appearance across various web browsers to ensure that it works optimally on all platforms.

It is essential because different browsers have different rendering engines to display web content. For example, Chrome uses the Blink rendering engine while Firefox uses Gecko and Safari uses the WebKit rendering engine.

I have shared below ways to perform cross browser testing in Cypress.

1). Cross Browser Testing using Cypress test runner

2). Cross Browser Testing using Cypress test file

3). Cross Browser Testing using Cypress CLI

4). Cross Browser Testing Using Script

5). Cross Browser Testing using Cloud Platform

6). Cross Browser Testing using GitHub Actions

7). Cross Browser Testing using GitHub Actions

8). Cross Browser Testing using Docker

For a more detailed understanding of cross browser testing in Cypress, please refer to the blog provided below. Blog : https://www.lambdatest.com/learning-hub/crossbrowser-testing-with-cypress