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Mozilla Automation TeamElise Phillips3 min readintermediate

Brasil dá um passo importante para a promoção de mercados digitais abertos e competitivos

Summary

Brazil's proposed PL 4675/2025 aims to foster open digital markets by adopting an *ex ante* competition framework, similar to the EU DMA. Mozilla supports this bill, citing its own positive experience with browser choice screens under the DMA, which significantly increased Firefox adoption and retention.

  • Brazil's PL 4675/2025 proposes an *ex ante* framework for digital market competition, inspired by EU DMA and UK DMCCA.
  • It mandates "isonomic and non-discriminatory" choice architecture, including screens for default product selection.
  • Mozilla's EU DMA experience shows browser choice screens significantly boost Firefox adoption and retention.
  • The bill empowers Cade (Brazil's antitrust authority) to proactively address anti-competitive practices.

This legislation could reshape the competitive landscape for digital services in Brazil, potentially increasing user choice and opportunities for smaller developers.

6/10

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