Edge case: Opera claims Microsoft still playing dirty with defaults

Veteran browser maker Opera has filed a complaint with Brazil's Administrative Council for Economic Defense (CADE) against Microsoft over alleged anti-competitive practices in Windows that favor Edge.

The complaint alleges that "all-or-nothing" bundled rebates force PC manufacturers to make Edge the "exclusive" pre-installed default browser and that Microsoft employs "dark pattern tactics" including ignoring default browser choices in some scenarios and stopping users from switching away from the defaults on Windows "S mode" devices.

Brazil is an important market for Opera, although the browser's market share has been declining slightly over the last few months, according to StatCounter. It currently stands at 6.78 percent, compared to Edge's 11.52 percent and Chrome's 74.95 percent.

Worldwide, Opera has a market share of 2.65 percent.

If this sounds a lot like a demand for the browser choice screen that Microsoft was forced to implement over ...