Google and Opera reported Microsoft's web browser choice violation to the European Commission, according to the Financial Times.



From The Inquirer:

Yesterday Microsoft got hit with a €561m fine from the European Commission (EC) after the firm failed to keep its promise of offering Windows users a choice of web browsers. According to the Financial Times, the EC was tipped off about the violation by web browser rivals Google and Opera.

Microsoft's web browser choice option was part of a deal it made with the EC to avoid a multi-billion dollar fine back in 2009, however for 14 months in 2011 Windows 7 users did not see the option. Microsoft blamed this on a technical error, but its excuse wasn't enough to avoid a steep fine and the honour of becoming the first company to fail to comply with an EC antitrust agreement.

  Google and Opera reportedly tipped off EC about Microsoft