The makers of the Firefox and Opera web browsers are upset with Microsoft over the way its Windows 7 upgrade process can change a user’s default web browser. When a user upgrades from a previous version of Windows (like XP or Vista), they are given a choice to do an “express” or a “custom” set up. If a user who was using a non-Microsoft browser selects the “express” option, the user’s default web browser is immediately changed to Microsoft’s Internet Explorer browser. Mozilla’s chairwoman has stated that “this is a blatant use of the Windows operating system to change the market dynamics of browser usage.” This comes at a time when Microsoft is under fire from European Union antitrust regulators alleging that it attempted to impede rivals from gaining market share by tying Internet Explorer to the Windows operating system.
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