Next Generation Functional Testing Tool
TestWise makes running same tests against different browsers easy, just choose the browser on the toolbar and then run the tests.
Internet Explorer (Watir and Selenium-WebDriver)
Obviously this for tests running on MS windows platform, IE8 or IE9 on Windows XP or Windows 7 are supported.
Selenium 2 (WebDriver) support multiple browsers, including IE, Chrome and Firefox. No installation needed, just select Firefox icon on TestWise toolbar and then run your test.