Opera filed a complaint against Microsoft, accusing it of unfairly promoting its browser to the detriment of others.

Opera files a formal complaint with a Brazilian regulator, alleging that Microsoft is discouraging Windows users from trying other browsers.

Opera has filed an antitrust complaint in Brazil against Microsoft, accusing it of using its Windows dominance to unfairly ...

Opera files a complaint against Microsoft Edge with the Brazilian antitrust authority. Opera claims Edge bundling and design ...