Google Bans Prediction Market Extensions From Chrome — Effective 1 August, the Same Day as Minnesota's Felony Ban
Google announced on 1 July that it will ban Chrome Web Store extensions that facilitate real-money trading on prediction markets, effective 1 August 2026. The policy update is the second Google action against prediction markets in a month, following an Ohio advertising ban in June, and it coincides with Minnesota's felony ban on prediction-market operators — unless a federal court enjoins it first.
Google announced on 1 July via the Chrome for Developers blog that it is updating its Chrome Web Store policies to prohibit extensions that facilitate real-money trading on predictive outcomes. Developers have until 1 August 2026 to comply, after which non-compliant extensions face removal. The ban covers tools that enable users to place real-money trades on prediction market platforms — extensions that only display odds or market data without enabling transactions appear to fall outside the scope, though the policy language is broad enough that enforcement calls will be made case by case.
This is the second Google action against prediction markets in a month. In June, Google updated its advertising policies to ban prediction market ads targeting Ohio users. The Chrome extension ban is broader: it applies nationally and targets distribution infrastructure rather than paid advertising. Together, the two moves reflect the pattern of major platforms adjusting policies when a product category is in regulatory limbo — pulling back to avoid liability until the legal framework clarifies.
The 1 August effective date coincides with Minnesota's felony ban on prediction-market operators, unless the federal court grants the CFTC's pending preliminary injunction before then. The two deadlines together create a pinch point: if the Minnesota court does not act, criminal exposure for operators and Chrome extension removal both activate on the same day. Neither event eliminates the web platforms themselves — Minnesota's ban targets operators, not users, and the Chrome ban covers extensions, not websites — but the combined effect is a narrowing of both the legal operating space and the technical ecosystem.
For UK readers the extension ban is a useful reminder that prediction markets remain unavailable to UK customers through either Kalshi or Polymarket, so the Chrome policy change does not directly affect British users. What it does signal is that US distribution platforms are beginning to treat prediction markets as a category with enough regulatory risk to warrant proactive restriction. The CFTC comment window on its proposed rule closes 27 July — three days before the extension ban takes effect — meaning the Chrome policy lands before the regulatory framework most likely to resolve the status of these products has even completed its public consultation.
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