Always active Window (Always Visible)

Pretend that all browser windows are active by spoofing the visibility state event

Always Active Window Add-On for Firefox

"Always Active Window (Always Visible)" is a Firefox add-on that tricks web pages into thinking your tabs are always active. By modifying the visibility state properties, it ensures that background tabs can freely load content and services, particularly useful for media sites that check whether a tab is active. The extension injects a script into all web pages, making them behave as if they're in the foreground, bypassing restrictions imposed by many websites.
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Add-on stats

By: Brian
Users: 3,626
15
Rating: 4.09
(35)
Version: 0.4.3.1 (Last updated: 2025-01-16)
Creation date: 2019-10-12
Weekly download count: 145
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood:
Moderate risk likelihood
Manifest version: 3
Permissions:
  • storage
  • scripting
Host permissions:
  • *://*/*
Size: 57.18K

Ranking

# 1,426 ▼ 31
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Other platforms

Always active Window - Always Visible (v0.4.3)
3.98 (147) 200,000
Not available on Android
Always active Window - Always Visible (v0.4.3.1)
4.00 (2) 16,565
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Add-on summary

Analyze keywords

YouTube Preview: https://www.youtube.com/watch?v=7gr44trZr_o

This extension protects against web pages tracking the activity state of the page. Some websites use this track to only offer services when the tab is active. By installing this extension a small script is injected into every webpage which overwrites the "document.visibilityState", and "document.hidden" properties to pretend the tab is always in the active state (document.visibilityState = 'visible' and document.hidden = false).

This is useful for the webpages that check your visibility state before loading resources like many music webpages. By installing this extension even if the page is opened in the background page, the player will start immediately like the page is loaded on an active tab.

Supported Trackings: document.mozHidden (only on Firefox browser) document.webkitHidden (only on Chromium browsers)

Supported Events:

  1. visibilitychange
  2. webkitvisibilitychange (only on Chromium browsers)
  3. mozvisibilitychange (only on Firefox browser)
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User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Works well for disabling auto-refresh on social media sites like Facebook
  • Helps in maintaining visibility and loading of tabs without needing to click them
  • Improves functionality for various educational sites like Coursera
  • Provides consistent behavior across tabs and improves privacy
Cons
  • Causes issues with posting on Instagram web version
  • Some sites may not load titles until clicked, which could be inconvenient
  • Not all users find it functional, with some claiming it doesn't work at all
Most mentioned
  • Inconsistent performance across different websites
  • Issues with specific platforms like Instagram and Reddit
  • Overall improvement in browsing experience for background tabs
User reviews
Worked for one day only.
by Firefox user 18732853, 2024-12-15
uBlock Origin -> My Filters anysite.com##+js(aeld, /blur|focus|afterblur|mousemove|visibilitychange/)
by Party, 2024-12-10
by Firefox user 14258782, 2024-12-09
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Add-on safety

Risk impact

Always active Window (Always Visible) requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

Always active Window (Always Visible) is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Upgrade to see risk analysis details