Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Tìm kiếm hỗ trợ

Tránh các lừa đảo về hỗ trợ. Chúng tôi sẽ không bao giờ yêu cầu bạn gọi hoặc nhắn tin đến số điện thoại hoặc chia sẻ thông tin cá nhân. Vui lòng báo cáo hoạt động đáng ngờ bằng cách sử dụng tùy chọn "Báo cáo lạm dụng".

Tìm hiểu thêm

Efficiency Mode

  • 3 trả lời
  • 2 gặp vấn đề này
  • 102 lượt xem
  • Trả lời mới nhất được viết bởi Ed

Firefox keeps going into efficiency mode and hosing my pc. I have end task from task manger and restart Firefox to clear it. I recently upgraded to Win 11.

Firefox keeps going into efficiency mode and hosing my pc. I have end task from task manger and restart Firefox to clear it. I recently upgraded to Win 11.

Tất cả các câu trả lời (3)

This should disable it permanently:

Type about:config in the address bar > press Enter

- click 'Accept the risk and continue'

- search for dom.ipc.processPriorityManager.backgroundUsesEcoQoS > change the value to false > restart FF

Hey Ed, I did what recommended and it stop Firefox going into Efficiency Mode. But I watched Firefox start eating up memory. After Firefox memory consumption reached 28 Gb the pc locked up. I had three Firefox windows open. One had one tab while minimize , another had three tabs while minimize and the other had four tabs with one open and playing news broadcast not full screen. Any ideas? Thanks, Harry

hjlane2 said

Hey Ed, I did what recommended and it stop Firefox going into Efficiency Mode. But I watched Firefox start eating up memory. After Firefox memory consumption reached 28 Gb the pc locked up. I had three Firefox windows open. One had one tab while minimize , another had three tabs while minimize and the other had four tabs with one open and playing news broadcast not full screen. Any ideas? Thanks, Harry

See what happens after a while in Troubleshoot mode (https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode).