Youtube Center - Firefox

Here is your 2026 YouTube customization stack for Firefox:

Before YouTube cracked down hard on ad blockers, YouTube Center had a native filter to skip video ads and banner ads. youtube center firefox

You could set auto-play to be off by default—a feature YouTube didn't officially offer for years. Here is your 2026 YouTube customization stack for

Tired of YouTube defaulting to 480p? YouTube Center let you force a specific quality (e.g., 1080p or 4K) for every video, regardless of your connection speed. 1080p or 4K) for every video