Chrome Web Store launches new policy in August: bans prediction markets, AI extensions, data collection and other related plugins.

Chrome Web Store Enforces New Developer Policies Starting August 1, Targeting Prediction Markets, AI Extensions, and Data Collection.
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• Prediction Markets Classified as Regulated Goods
• Three Major Rules for Data Collection
• New AI Service Protection Clauses
• Consequences of Violations

Google Developer Blog Announcement: The Chrome Web Store will enforce a new round of developer policies starting August 1, 2026, covering four key adjustments: prediction markets, data collection, AI extensions, and related features will be restricted. These policy tweaks aim to prevent illegal and improper leakage of personal data:

Prediction Markets Classified as Regulated Goods

The new policy explicitly categorizes prediction markets as regulated goods, banning extensions that support real-money transactions from being listed in the store. This adjustment makes Chrome's extension ecosystem more rigorous. Taking the current hottest 2026 World Cup prediction as an example, Polymarket's championship market has accumulated over $3.9 billion in trading volume, with France leading at a 35.1% probability of winning—highlighting the scale of the related market.

Three Major Rules for Data Collection

User data collection must comply with the following rules:

• Single-Purpose Limitation: User data collected by extensions may only be used for the purposes disclosed in advance and must not be repurposed.
• Prominent Disclosure: All data collection activities must be clearly disclosed to users.
• Change Notification: If the data handling method changes after installation, developers must proactively notify users.

This regulation is especially critical in the AI era, where data collection is pervasive. Recent studies show that browser extensions typically scrape users' browsing habits, shopping records, and even search history across multiple websites simultaneously. Chrome has over 3 billion monthly active users worldwide, supports about 80 languages, and has more than 800k extensions—making the scale of data collection a non-trivial concern.

New AI Service Protection Clauses

The policy adds clauses prohibiting the bypassing of AI service protection measures and user restrictions. This means developers using AI features must ensure their extensions do not circumvent model protections, usage quotas, or price limits.

Taiwan's AI industry is also affected. In the Chrome extension market, AI writing assistants, image generators, real-time translators, and other tools already occupy 5 of the top 10 spots in the popular rankings. If developers bypass AI model protections (e.g., usage limits), the new policy will directly apply to these extensions.

Consequences of Violations

Extensions that fail to comply with the new policies will face forced removal or other actions. Google noted in its announcement that developers should review their extensions for compliance with the new rules before August 1.

For Taiwanese users, this policy adjustment means the Chrome extensions they use daily will become more transparent. If you frequently use tools like translators, price comparison, or AI writing, it is recommended to check the data collection declarations of installed extensions to ensure they align with the new policies.