---
title: "Firefox Add-on permissions vs Chrome Manifest V3: security guide for AI tools."
description: "How Mozilla Firefox's WebExtension permission model, Data Collection disclosures, and `about:addons` controls work for AI reading extensions like Vezz me."
canonical_url: "https://vezz.me/permissions/firefox-webextension-permissions/"
type: "pseo-permissions"
category: "permissions"
topic: "Firefox Add-on Security Audit"
intent: "Best for Firefox users who care about browser privacy, open-web standards, and transparent extension permissions."
---

# Firefox Add-on permissions vs Chrome Manifest V3: security guide for AI tools.

How Mozilla Firefox's WebExtension permission model, Data Collection disclosures, and `about:addons` controls work for AI reading extensions like Vezz me.

> **Best fit:** Best for Firefox users who care about browser privacy, open-web standards, and transparent extension permissions.

## Technical Permission Audit

- **Manifest Key:** `Firefox WebExtension MV3 + Data Collection Disclosure`
- **Chrome Install Warning:** "Access your data for all websites" (in Firefox Add-ons prompt)
- **Risk Level:** Medium

```json
"browser_specific_settings": {
  "gecko": {
    "id": "vezz-me@vezz.me",
    "strict_min_version": "140.0"
  }
}
```

### Legitimate Uses
- Running the same on-screen selected-text answer panel natively inside Mozilla Firefox
- Declaring transparent Firefox Data Collection permissions (`authenticationInfo`, `websiteContent`, `websiteActivity`)

### Red Flags to Watch For
- Extensions that only support Chromium and force Firefox users to switch browsers
- Extensions that obfuscate code to evade Mozilla Add-on (AMO) review

**How Vezz me handles this:** Vezz me is officially published on Mozilla Firefox Add-ons with explicit gecko data-collection declarations, zero remote code, and identical `Minimal` / `Basic` / `Detailed` context privacy controls.

## Step-by-step workflow

1. **Check Mozilla's Data Collection disclosure section**: Firefox's Manifest V3 schema includes explicit `data_collection_permissions` metadata so users know upfront what categories of data an add-on processes.
2. **Manage per-site permissions in about:addons**: In Firefox, open `about:addons`, click the extension, and inspect the 'Permissions and Data' tab at any time.
3. **Choose your context level inside Vezz me**: Set Page Context to `Minimal`, `Basic`, or `Detailed` directly in the Firefox toolbar popup.

## Why Firefox users love user-triggered extensions

Firefox users choose Mozilla specifically to avoid surveillance-heavy browser defaults.

- Vezz me never collects a browsing-history log in Firefox or Chrome
- Zero background network requests while you browse
- Works smoothly alongside Firefox Multi-Account Containers and Enhanced Tracking Protection

## Frequently asked questions

### Does Vezz me work inside Firefox Multi-Account Containers?

Yes! Vezz me works inside standard tabs and Firefox Multi-Account Container tabs whenever you highlight text and press your shortcut.

## Related guides

- [Vezz me for Firefox Users](https://vezz.me/for/firefox-users/): Complete guide to using Vezz me in Mozilla Firefox.
- [Vezz me Privacy Policy](https://vezz.me/privacy/): Read our complete privacy and data retention disclosures.