# Refill

> Redirect from polyfill.io to the alternative provider. (Currently, polyfill-fastly.net)

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

## Overview

- **ID:** `refill`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** 가을별
- **Category:** privacy-security
- **Daily users:** 1
- **Version:** 0.0.0.1
- **Last updated:** 2024-06-02
- **First published:** 2024-06-01
- **Size:** 23 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/refill/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/refill/privacy/](https://addons.mozilla.org/firefox/addon/refill/privacy/)

## Description

<a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/d6ba96c30fa01f83834481aae899e25e93c449df71586a5e7dc741b2142159c4/http%3A//Polyfill.io" rel="nofollow">Polyfill.io</a> is a popular tool for enhancing browser capabilities, and many users access it by linking to the <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/177c6657432ed15459a3621ffcb27631c0087a4ba4154cd3a143cd4f4d51deac/http%3A//polyfill.io" rel="nofollow">polyfill.io</a> service, which has recently changed ownership to a new party.
To avoid potential risk of the supply chain attack, this extension redirects <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/177c6657432ed15459a3621ffcb27631c0087a4ba4154cd3a143cd4f4d51deac/http%3A//polyfill.io" rel="nofollow">polyfill.io</a> requests to <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/008954a790b55b8c7ee1f5a0220a994e5b5f8f39dfb229bb9e65ba101fafa483/http%3A//polyfill-fastly.net" rel="nofollow">polyfill-fastly.net</a>.

Note that this exension is not affiliated with Fastly.

## Rankings

- #123,654 — Overall

## Permissions and access

### Permissions

- `declarativeNetRequest`

### Host permissions

- `<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/refill)