Selenium IDE

Selenium IDE is the easiest way to use Selenium and most of the time it also serves as a starting point for automation. Selenium IDE comes as an extension to the Firefox web browser. Selenium IDE is the only flavor of Selenium which allows you to record user action on browser window. It can also record user actions in most of the popular languages like Java, C#, Perl, Ruby etc. This eliminates the need of learning new vendor language. As compared to most of the test automation tools it is very simple and lightweight. Limitations of Selenium IDE in terms of language support for running the test script internally (Only Selenese) and browser support (Firefox only)