Bluetooth audio/video sync lag and micro-stutters on web media players'''

Device: Honor Magic 8 Pro (Android) Issue: When Bluetooth headphones are connected, watching videos on movie/TV show websites causes micro-stuttering and lag in both audio and video. Troubleshooting done: Disabling AV1, toggling hardware decoding, and changing various about:config media settings (like audio-offload, cache size) did not resolve the issue. Note: The videos play perfectly smooth on Chromium-based browsers (Brave/Chrome) under the exact same conditions with the same Bluetooth headphones. The synchronization issue seems specific to the GeckoView engine.