# Nooperify

> Adds rel="noopener noreferrer" to links.

Canonical page: [https://chrome-stats.com/d/nooperify](https://chrome-stats.com/d/nooperify)

## Overview

- **ID:** `nooperify`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Bytez
- **Category:** privacy-security
- **Daily users:** 1
- **Version:** 1.1
- **Last updated:** 2024-03-06
- **First published:** 2024-03-05
- **Size:** 23 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/nooperify/)

## Description

The noopener keyword for the rel attribute of the <a>, <area>, and <form> elements instructs the browser to navigate to the target resource without granting the new browsing context access to the document that opened it — by not setting the Window.opener property on the opened window (it returns null).

This is especially useful when opening untrusted links, in order to ensure they cannot tamper with the originating document via the Window.opener property (see About rel=noopener for more details), while still providing the Referer HTTP header (unless noreferrer is used as well).

Source: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/40ea87f2c6986520a448be0b33704d70ad5fbaa882aa9ec6b096b3bc474951dc/https%3A//developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel/noopener" rel="nofollow">MDN Web Docs</a>

## Rankings

- #118,229 — Overall

## Permissions and access

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/nooperify)