With web applications, you don’t know in advance which browsers your users will use. Hence, it’s crucial to test the web application or the website on multiple major browsers running on different operating systems.
Cross-browser testing is a type of browser automation testing where the tester verifies if the web application will work smoothly on different browsers. Some of the popular browsers include Google Chrome, Mozilla Firefox, Internet Explorer, Safari, etc.
The goal of the cross-browser testing is to launch the application on various browsers running on different operating systems, e.g. Windows, Mac OS, Linux, etc., and verify that the application works as expected. The tester looks for the design/rendering issues, the functionality of the application, and device-specific functionality.
Though it can be typically, sophisticated tools exist that allow the testers to automate cross-browser testing. Some examples include Selenium Box, BrowserStack, Browsershots, LambdaTest, etc.
