微软(MSFT.O)将因与竞争对手浏览器Opera的纠纷，被巴西反垄断监管机构提出投诉。

Core Viewpoint - Microsoft (MSFT.O) is facing a complaint from Brazil's antitrust regulatory agency due to a dispute with competitor browser Opera [1] Group 1 - The complaint indicates potential regulatory scrutiny on Microsoft's competitive practices in the browser market [1] - The situation highlights ongoing tensions between major tech companies and regulatory bodies regarding market competition [1]