High Power Consumption with Firefox

Figured I’d pop in here and let you all know that the 136 version of Firefox should have amdgpu hardware video decoding enabled on Linux:

Perhaps it may change some power usage data in a good way.

Specs

  • Model: Framework 16
  • CPU: AMD Ryzen™ 7 7840HS
  • GPU: Radeon 780M
  • BIOS version: 03.05
  • Linux distribution: Gentoo 2.17
  • Linux kernel version: 6.15-rc1 mainline - realtime PREEMPT_RT
  • Linux firmware: commit d864697f
  • Desktop/GUI Environment: KDE Plasma 6.2.5 - Wayland

Since Firefox 137.0.0 ( now using 137.0.1 ) in Wayland mode, things seems to have improved a lot but it still happens

so I’m using Wayland by default again, which is good because KDE plans to stop support or development of Xwayland start with KDE 7

I have an AMD laptop 13 and was experiencing really high battery drain and CPU heat from Firefox, with btop showing battery drain at 25-30W. While most of this thread is older and not as relevant, using the suggestion about to check about:processes and found that a specific tab was racing at max (it was the dashboard for Netvisor). Once I closed that tab, I was seeing overall battery use more in the 10-13W range that others are reporting as being more normal. Wanted to drop this here since I wouldn’t have thought to check specific tabs/sites if not for checking about:processes.

I did a battery test a while back and I get better battery life with Brave