Hi to all, I enabled hardware acceleration in about:preferences. Furthermore I set to true the following in about:config: -gfx.direct2d.force-enabled; -gfx.webrender.all; -gfx.webrender.enabled; -layers.acceleration.force-enabled; -webgl.force-enabled; Nevertheless I notice that opening multiple tabs cause YouTube audio interruptions in the case that one of Firefox’s tabs is playing a video on YouTube. Doing the same with Chrome doesn’t cause audio interruptions even opening a lot of tabs. I think this is because hardware acceleration in Firefox isn’t working. I think this because I see that the processor it is very loaded when opening multiple tabs of Firefox. Processor is not very loaded opening multiple tabs of Chrome. Am I right? Why this problem doesn’t happen on Chrome? How can I make Firefox like Chrome? Thank you in advance for your answers!