Privacy Policy for Chrome Extensions — Required by Chrome Web Store

The Chrome Web Store requires a privacy policy for any extension that handles user data. This is enforced at submission — the extension review team will reject your listing if you do not provide a policy URL or if your policy is missing required disclosures.

Same rules apply to Firefox Add-ons and Microsoft Edge extensions, with slightly different specifics.

What Chrome Web Store Considers "Handling User Data"

Google's definition is broad. Your extension needs a privacy policy if it does any of these:

• Reads page content (DOM access on any page)
• Stores preferences in chrome.storage
• Sends ANY data to a remote server (even crash reports)
• Uses analytics like Google Analytics or any custom tracking
• Accesses browser APIs like history, bookmarks, tabs, downloads, cookies
• Asks for permissions in manifest.json beyond minimal popup behavior
• Communicates with native applications
• Has any kind of user account or login

Practically every extension beyond "click a button to do one local thing" requires a policy.

How to Generate a Chrome Extension Privacy Policy

1. Open the privacy policy generator
2. Enter your extension name (use the official name from Chrome Web Store)
3. Enter your extension's website URL (or your developer URL if no dedicated site)
4. Enter your contact email (use a real address — Chrome reviewers may contact you)
5. Check data types based on what your extension actually does. For most extensions: Cookies (if used), Device Info, Usage Data. Add Email if there is a signup feature.
6. Add third-party services if applicable (Google Analytics, Stripe for paid features, your backend API)
7. Enable GDPR — Chrome users come from everywhere globally
8. Generate, copy, paste into your hosted page

Where to Host the Policy URL

The URL must be publicly accessible. Free options:

Host	Cost	Setup time	Best for
GitHub Pages	Free	15 min	Developers
Cloudflare Pages	Free	10 min	Easy DNS + CDN
Netlify	Free	10 min	Drag & drop deploy
Vercel	Free	10 min	Next.js integration
Carrd	Free tier	5 min	Single page sites
Notion Public Page	Free	3 min	Quick & simple
Your existing site	-	Already there	Most extensions

The simplest path: create a single HTML file with your policy and host it on GitHub Pages or Cloudflare Pages. Five minutes of work.

Chrome Web Store Developer Dashboard Setup

1. Go to the Chrome Web Store developer dashboard
2. Open your extension's listing
3. Go to "Privacy practices" tab
4. Enter your privacy policy URL in the "Privacy policy" field
5. Fill out the data usage disclosures (separate questionnaire from the policy itself)
6. Save and submit for review

The data usage disclosures are a separate compliance step — Google asks specific yes/no questions about whether you collect, sell, or transfer user data. Answer truthfully. Mismatches between your policy text and these answers will get your extension rejected or removed.

Manifest V3 Permissions and Privacy

Manifest V3 (the current required manifest version) requires you to declare exactly which permissions your extension uses. Each permission has privacy implications:

• "activeTab" — only the current tab when user clicks. Lower privacy concern.
• "tabs" — access to all tabs. Higher concern, mention in policy.
• "storage" — local storage for preferences. Mention what is stored.
• "history" — browsing history. Big privacy implication, must be disclosed clearly.
• "cookies" — read/write cookies. Disclose which sites and why.
• "<all_urls>" host permission — runs on every site. Major privacy disclosure required.

The privacy policy should mention every permission that touches user data and explain what your extension does with the access.

Specific Sections for Chrome Extensions

What permissions your extension uses and why. "This extension requests the 'tabs' permission to detect when you switch between tabs and update its display accordingly. We do not record, store, or transmit any information about which tabs you visit."

Where data is stored. "Your preferences are stored locally in your browser using chrome.storage.local. They never leave your device and are not synced to any server."

Whether anything is sent to a server. "This extension does not send any data to any server. All processing happens locally in your browser." Or, if applicable: "This extension sends [specific data] to [specific server] for [specific purpose]. The data is not stored long-term and is not shared with third parties."

Account requirements. "This extension does not require an account or login. No personal information is collected or stored beyond your local preferences."

Common Reasons Extensions Get Rejected

1. No privacy policy URL provided
2. Privacy policy URL returns 404
3. Privacy policy is generic and doesn't mention the extension by name
4. Policy contradicts the Privacy Practices questionnaire answers
5. Permissions in manifest don't match the policy disclosures
6. Policy claims "no data collected" but extension uses analytics
7. Single-purpose policy violation: extension does more than its description

Firefox and Edge — Same Idea, Different Specifics

Firefox Add-ons (Mozilla) requires a privacy policy with similar specificity. Microsoft Edge Add-ons follows Chrome's standards almost exactly (Edge uses the same Chromium base).

Best practice: write one privacy policy that covers all browser stores, host it once, and link to it from each developer dashboard.