Background Playback Helper (YouTube & Vimeo) per Phase3

Version 0.6.0 is out!
This version addresses the new blocking methods YouTube recently began rolling out to prevent background playback on both mobile and desktop.

It also includes a new "Stop Video Pause" feature that automatically dismisses "Still watching?" and "Video paused. Continue watching?" dialogs on YouTube and YouTube Music.

Starting with this release, all source code is open source and freely available on GitHub.

Features:
• Firefox for Android: Helps maintain background audio playback when switching apps or locking the screen.
• Firefox Desktop: Prevents videos from pausing when switching tabs and stabilizes playback when loading video sites in Firefox sidebar or DevTools responsive mode. Verified compatible with Firefox Desktop on Windows. Other desktop platforms are not officially tested.
• Active Status Indicator: Automatically detects supported sites and displays a green icon and badge to indicate when the helper is active.
• Dark Mode UI: Minimal, dark-themed popup interface for toggling features.
• Optional Keep-Alive: Sends harmless, non-character activity signals that may reduce inactivity-based pauses on some players.
• Stop Video Pause: Automatically keeps the player active and dismisses "Still watching?" and "Video paused. Continue watching?" prompts on YouTube and YouTube Music.
• Privacy Focused: All logic runs locally. No user data is collected or transmitted.

** --Developer Update: **
• Recent YouTube changes. The current release, 0.6.0, addresses YouTube's latest detection techniques and blocking methods. YouTube appears to be rolling out these changes in phases and is still refining their approach.

• If 0.6.0 does not work for you. While 0.6.0 should work for most users, if you encounter issues, we would ask that you report them directly to our support email below instead of leaving a negative review. Please include your browser version, device type (desktop or mobile), and when playback stops. This helps ensure future releases fix as many real-world cases as possible caused by YouTube's changes. Thank you for your support!

Version 0.6.0: Release Notes

• Added No-Pause Playback for YouTube and YouTube Music.
• Improved background playback reliability on YouTube and YouTube Music and supported sites based on YouTube's recent changes.
• General stability improvements for tab switching and visibility handling.
• Source code now available on Github.

Version 0.4.1: Release Notes

• Fixed Firefox for Android issue where the extension options panel would not open while media was playing.
• Improved background playback reliability on YouTube Music and supported sites when the browser is minimized or the screen is locked.
• General stability improvements for tab switching and visibility handling.

Version 0.4.0: Release Notes

• Added master enable/disable toggle
• Improved background playback reliability
• Added main-world visibility handling for better compatibility
• Improved popup UI and control behavior
• Improved icon and badge status indicators