The duopoly that Apple and Google hold over mobile phone browsers is causing consumers to lose out and is dampening innovation, regulators say. The UK's Competition and Markets Authority (CMA) said Apple is holding back competitors such as Mozilla and Firefox from offering new features because of restrictions built into its platform.

If Apple and Google don’t make it easier for users to discover third-party browsers, the companies will not have as much of a competitive need to improve Safari and Chrome.