Have a new 2024 macbook pro m3 max with 128GB internal memory, 8tb ssd, macos (meest recente update) , and glass fibre internet connection of 1gb up and 1gb down and have used the same router and same ISP. i use firefox in combination with nordvpn and multicontainer add-on to open multiple tabs with on each tab/containter the same video stream of 720p/3mb. Used to work perfect until a few weeks ago. In the beginning there is no problem, but after a while stream start to stutter and freezes completely and i get a blackscreen;. Tried every quick fix on the internet, and even increased the cache. Also tried different machines and issue is the same on each macos device. how can i fix this? Many thanks for looking into this. S aka1020@protonmail.com