The earlier this month agreed to allow Mozilla Corp. to participate in its latest antitrust case against Microsoft Corp.

In a blog post, Mozilla Chairwoman Mitchell Baker said that the company will serve "as a resource to the EC as it considers what an effective remedy would entail."

The EC last month charged Microsoft with violating European antitrust laws by bundling its Internet Explorer browser with the Windows operating system.

Baker said that Mozilla, which coordinates the development of the open-source Firefox browser, agrees that tying IE to Windows "harms competition between Web browsers, undermines product innovation and ultimately reduces consumer choice."

Mozilla's "interested third party" status allows it to submit legal arguments to European regulators and participate in hearings.