This is the best summary I could come up with:

The experimental feature was initially spotted by MSPowerUser, and Firefox’s senior director of product management Byron Jourdan confirmed that the company is testing the functionality “with a limited audience in the United States,” in a statement given to The Verge.

Fake reviews are a big problem for online retailers, which have had to take increasingly aggressive measures to stop malicious actors from using them to boost the ratings of their products.

Screenshots posted by MSPowerUser show how the tool is accessible via a price tag icon in the browser’s URL bar, which brings up a sidebar with details on the current open product page.

The Review Checker feature is powered by technology from Fakespot, a company Mozilla acquired earlier this year.

The company “uses a sophisticated artificial intelligence (AI) and machine learning (ML) system to detect patterns and similarities between reviews in order to flag those that are most likely to be deceptive,” Mozilla said when it announced the acquisition, noting that it planned to integrate the technology into its browser to “make Firefox customers the best equipped to cut through deceptive reviews.”

Fakespot already offers its review checking services via its website, extensions for browsers like Chrome and Safari, and iOS and Android apps.

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