Each browser has its own option/preference for setting it as the default browser.\n\nFOR IE:\n\n1.Start Internet Explorer. On the View menu, click Options.\n2.Click the Advanced tab and click to select the On startup, perform check for default browser check box.\n3.Click OK.\n4.Quit and re-start Internet Explorer. Then when you are prompted to make it the default browser, click Yes.\n\nin FIREFOX:\n\nGo to TOOLS > OPTIONS > GENERAL TAB