---
title: "Chrome 'cookies' permission: why AI reading extensions shouldn't need your session cookies."
description: "What does the Chrome 'cookies' permission allow? Learn why requesting cookie access across websites is a major red flag for AI browser extensions—and how safe tools authenticate instead."
canonical_url: "https://vezz.me/permissions/cookies/"
type: "pseo-permissions"
category: "permissions"
topic: "Chrome Permission Audit"
intent: "Best for security-conscious users auditing whether a Chrome extension can access logged-in session tokens."
---

# Chrome 'cookies' permission: why AI reading extensions shouldn't need your session cookies.

What does the Chrome 'cookies' permission allow? Learn why requesting cookie access across websites is a major red flag for AI browser extensions—and how safe tools authenticate instead.

> **Best fit:** Best for security-conscious users auditing whether a Chrome extension can access logged-in session tokens.

## Technical Permission Audit

- **Manifest Key:** `cookies`
- **Chrome Install Warning:** "Read and change all your data on all websites" (when paired with host permissions)
- **Risk Level:** Higher

```json
{
  "manifest_version": 3,
  "permissions": ["cookies"],
  "host_permissions": ["<all_urls>"]
}
```

### Legitimate Uses
- Developer cookie-inspector tools built specifically for debugging `HttpOnly` and `SameSite` flags
- Reading an authentication cookie ONLY on the extension's own first-party domain (e.g., `app.example.com`)

### Red Flags to Watch For
- An AI summarizer requesting `cookies` + `<all_urls>`—which allows reading `HttpOnly` session cookies from your email, bank, or social accounts
- Using your logged-in third-party session cookies to scrape social networks in the background

**How Vezz me handles this:** Vezz me does NOT request the `cookies` permission. Account status and free/pro usage are tracked via a clean email identifier stored in isolated `chrome.storage`—never by reading browser cookies.

## Step-by-step workflow

1. **Check why cookies is more dangerous than normal DOM access**: Even a content script cannot read `HttpOnly` session cookies via `document.cookie`. However, the `chrome.cookies` API CAN read `HttpOnly` cookies for any domain in `host_permissions`.
2. **Verify the host scope if cookies is present**: If an extension requests `cookies`, its `host_permissions` should be restricted strictly to its own login domain—never `<all_urls>`.
3. **Prefer cookie-free extension authentication**: Vezz me never requests `cookies` permission.

## How `chrome.cookies` bypasses `HttpOnly` protection

Web applications mark sensitive session cookies as `HttpOnly` specifically so JavaScript running on the page cannot steal them. The `chrome.cookies` extension API bypasses that barrier for permitted hosts.

- `cookies` + `<all_urls>` is one of the highest-risk permission combinations in the Chrome Web Store
- An in-page AI reading assistant has zero need to read cookies from the websites you visit
- Vezz me operates purely on the visible text you select on screen and never touches your cookies

## Frequently asked questions

### Does Vezz me use the cookies permission?

No. Vezz me does not request the `cookies` permission and cannot access cookies on any website.

## Related guides

- [webRequest permission audit](https://vezz.me/permissions/webrequest/): Why AI extensions shouldn't intercept network traffic.
- [Banking & financial sites security](https://vezz.me/permissions/banking-and-financial-sites/): How to keep browser extensions safe around financial portals.