# No Focus Spying

> Prevent sites from being able to determine whether it is visible or not.

Canonical page: [https://chrome-stats.com/d/no-focus-spying](https://chrome-stats.com/d/no-focus-spying)

## Overview

- **ID:** `no-focus-spying`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** FreedomApps
- **Category:** privacy-security
- **Daily users:** 11
- **Rating:** 4.50 / 5 (4 ratings)
- **Version:** 0.0.2
- **Last updated:** 2020-08-03
- **First published:** 2020-08-02
- **Size:** 11 KB
- **Data as of:** 2026-09-13
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/no-focus-spying/)

## Description

No Focus Spying is a Firefox add-on that prevents sites such as Canvas from being able to detect whether the tab/window is focused or not.

## Rankings

- #31,956 — Overall
- #21 — ad spy
- #63 — focus
- #205 — prevent
- #230 — visibility

## Permissions and access

### Content script matches

- `*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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).

## Similar extensions and apps

- [Tab Focus](https://chrome-stats.com/d/focusontab) — 109 users, 5.00 / 5
- [Focus & Visibility Guard](https://chrome-stats.com/d/focus-visibility-guard) — 2 users
- [Stay Focused - Disable Visibility API](https://chrome-stats.com/d/stay-focused-addon) — 41 users
- [FocusMode](https://chrome-stats.com/d/focusmode) — 31 users
- [GhostTab Pro: Ultimate Stealth](https://chrome-stats.com/d/ghosttab-pro) — 8 users
- [Clipboard Focus Guard](https://chrome-stats.com/d/clipboard-focus-guard)
- [Focusly: Active & Focused Tabs](https://chrome-stats.com/d/focusly-active-focused-tabs) — 77 users
- [HyperFocus](https://chrome-stats.com/d/hyperfocus)
- [Focus Mode](https://chrome-stats.com/d/focus-mode-site) — 1 users
- [FocusGuard Pro](https://chrome-stats.com/d/focusguard-by-jtd) — 5 users
- [Focus Blocker](https://chrome-stats.com/d/focus-blocker)
- [Canvas Privacy Protection](https://chrome-stats.com/d/canvas-privacy-protection) — 13 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/no-focus-spying)