# SwCacheWatch

> Inspect service worker registrations, controller state, and Cache API keys.

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

## Overview

- **ID:** `swcachewatch`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Removed
- **Publisher:** timufar
- **Version:** 1.0.0
- **Last updated:** 2026-04-27
- **First published:** 2026-04-24
- **Size:** 31 KB
- **Data as of:** 2026-05-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/swcachewatch/)
- **Website:** [https://febetball.com/](https://febetball.com/)

## Description

SwCacheWatch is a Firefox extension for inspecting Service Worker and Cache API state on the active origin.
It reports whether the current page is controlled by a service worker, lists visible registrations, shows waiting/installing states, and inventories Cache API bucket names.

## Permissions and access

### Permissions

- `activeTab`
- `scripting`
- `clipboardWrite`

## Safety

- **Risk impact:** Low risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy risk.
- This extension is not longer available in the store

## Similar extensions and apps

- [Service Worker Detector](https://chrome-stats.com/d/service-worker-detector) — 136 users, 4.86 / 5
- [CacheControl](https://chrome-stats.com/d/cachecontrol) — 9 users, 3.00 / 5
- [Stakataka](https://chrome-stats.com/d/stakataka) — 1 users
- [CssLayerWatch](https://chrome-stats.com/d/csslayerwatch)
- [Site Cache Inspector](https://chrome-stats.com/d/site-cache-inspector) — 7 users
- [Service Worker Cleanup](https://chrome-stats.com/d/service-worker-cleanup) — 23 users, 5.00 / 5
- [SSL Watcher](https://chrome-stats.com/d/ssl-watcher) — 13 users
- [Cache Captain](https://chrome-stats.com/d/cache-captain) — 1 users
- [Cookie Watcher](https://chrome-stats.com/d/cookie-watcher) — 5 users
- [ActivityWatch Web Watcher Plus](https://chrome-stats.com/d/activitywatch-web-watcher-plus) — 20 users, 5.00 / 5
- [PageWatch — Automatic Page Monitor](https://chrome-stats.com/d/pagewatch-page-monitor) — 1 users
- [Content Override & Watch](https://chrome-stats.com/d/content-override-watch) — 1 users

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