Babylon is nothing to do with Mozilla Firefox. Some of the Babylon software may be deliberately downloaded, but possibly the majority is accidentally acquired when bundled with something else. I suspect the business plan is not to simplify or encourage removal of such moneymaking software. Having said that it is not out and out malware, and the Babylon support will assist in removal if necessary. Mozilla Firefox should be updating the documentation on such problems any time now. With hindsight the obvious solution is not to download software without reading all the fine print. Once unwanted software is installed there are two stages #identify the software and try to remove it. Often the names may not be obvious, and it may require global removal from the OS using the Windows Control Panel. # the firefox settings messed up by the software need resetting. There is an extension available that often succeeds in doing that for you. * see [[Remove a toolbar that has taken over your Firefox search or home page]]