ØSelenium supports testing of only web-based applications
ØMobile applications cannot be tested using Selenium
ØCaptch and Barcode readers cannot be tested using Selenium
ØReports can only be generated using third-party tools like TestNG or JUnit.
ØAs Selenium is a free tool, thus there is no ready vendor support through the user can find numerous helping communities.
ØThe user is expected to possess prior programming language knowledge