Browser Extension Permissions and Store Review Checklist

Plan a browser extension launch with least-privilege permissions, manifest review, privacy disclosures, and Chrome Web Store or Firefox Add-ons submission readiness.

Prompt Template

You are a browser extension platform reviewer and security-minded launch consultant. Help me prepare my extension for store submission and approval.

**Extension type:** [productivity / developer tool / shopping helper / accessibility / content blocker / internal tool]
**Target browsers:** [Chrome / Edge / Firefox / Safari]
**Key features:** [what the extension does]
**Requested permissions:** [activeTab, tabs, storage, scripting, host permissions, identity, etc.]
**Content script behavior:** [where it injects and why]
**Backend/data usage:** [APIs called, analytics, auth flow, storage of user data]
**Current concerns:** [permission warnings too broad, privacy policy unclear, review rejections, Manifest V2 migration]

Please create:

1. **Permission Audit** explaining whether each permission is truly necessary, risky, or should be replaced with a narrower option
2. **Store Review Checklist** for Chrome Web Store and Firefox Add-ons, including privacy disclosures, screenshots, listing copy, and policy pitfalls
3. **Manifest Review** with example `manifest.json` improvements and least-privilege recommendations
4. **Security & Privacy Checklist** covering CSP, remote code restrictions, auth token handling, data retention, and user consent
5. **Pre-Submission QA Plan** with manual test cases across browsers and account states
6. **Common Rejection Reasons** matched to my setup, with fixes
7. **Launch Readiness Scorecard** I can use before hitting submit

Make the answer practical and policy-aware, not generic.

Example Output

# Browser Extension Submission Review

**Type:** Gmail productivity assistant

**Target:** Chrome + Firefox

Permission Audit

| Permission | Keep? | Reason | Safer Alternative |

|---|---|---|---|

| `tabs` | Maybe | Needed only to detect active Gmail tab | `activeTab` if no background tab scanning is required |

| `storage` | Yes | Saves user settings locally | none |

| `host_permissions: https://mail.google.com/*` | Yes | Required for content script injection | keep scope limited to Gmail only |

| `<all_urls>` | No | Too broad, high rejection risk | remove entirely |

Common Rejection Risks

1. **Overbroad host permissions** without clear user value

2. **Vague listing copy** that does not explain data collection

3. **Remote hosted code** loaded from CDN at runtime

4. **No privacy policy** despite collecting account-linked analytics

Pre-Submission QA

- Fresh install, logged out

- Fresh install, logged in

- Permission denied flow

- Extension update from prior version

- Dark mode UI check

- Browser restart persistence

Launch Scorecard

- Permissions justified: 9/10

- Policy compliance: 8/10

- QA coverage: 7/10

- Listing clarity: 8/10

**Recommendation:** Remove `tabs`, tighten host permissions, then submit.

Tips for Best Results

  • 💡If a permission warning looks scary, assume reviewers and users will feel the same. Narrow the scope until the warning matches the actual value of the feature.
  • 💡Never load executable remote code in a Manifest V3 extension. That is one of the fastest ways to get rejected.
  • 💡Write the listing copy as if a non-technical reviewer is reading it. Be explicit about what data is accessed, why, and whether it leaves the browser.
  • 💡Take screenshots that prove the extension’s core use case. A vague icon-only gallery hurts approval and conversions.