For testers into automated browser testing, Selenium IDE is a worthy option to explore as it lets you export the test cases (created using the IDE) to popular programming languages such as Python, C# with xUnit, and more.

Which is not supported by Selenium IDE?

UNIX is an OS which is not supported by Selenium.

What languages does Selenium IDE support?

Selenium provides a playback tool for authoring functional tests without the need to learn a test scripting language (Selenium IDE). It also provides a test domain-specific language (Selenese) to write tests in a number of popular programming languages, including C#, Groovy, Java, Perl, PHP, Python, Ruby and Scala.