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Thunderbird & CPU

David Eddy

Why is Thunderbird constantly using 20% of my CPU cycles when everything else I have open is together only using ~10%?

Why is Thunderbird constantly using 20% of my CPU cycles when everything else I have open is together only using ~10%?

All Replies (2)

  1. Does Thunderbird work as expected in Thunderbird troubleshooting mode?
  2. Does Thunderbird work as expected with your OS started in safe mode with Networking. Instructions for each operating system: Windows 10/11, Windows 8, Windows 7, OSX

Turned off hardware acceleration. No running themes, just has the basic default. Rebooted. Thunderbird is still constantly eating 20% of my CPU.