Microsoft has hit back at Opera antitrust claims regarding Internet Explorer, denying that it is abusing its dominant market position to lock users into the web browser.

One of the biggest complaints a Firefox evangelist encounters is "it doesn't act or feel like browser X." Internet Explorer users complain that Firefox doesn't look like what they're used to. Opera, Safari, and Netscape users complain that it's missing many of their favorite features. And the social networking gurus point to the powerful social networking features Flock boasts and Firefox lacks.