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

搜尋 Mozilla 技術支援網站

防止技術支援詐騙。我們絕對不會要求您撥打電話或發送簡訊,或是提供個人資訊。請用「回報濫用」功能回報可疑的行為。

了解更多

Browser has excessive programs running in the background

更多選項

When I open one tab on Firefox, my task manager shows multiple programs running along side it. I know some extra processes are needed but this seems like an unusual amount. I have included a screenshot of the tasks that appear. When I try to delete these, they reappear. I have tried various online solutions such as uninstalling and reinstalling, and checking various settings. It is affecting my computer's performance and I am not sure how to solve this. Thank you!

When I open one tab on Firefox, my task manager shows multiple programs running along side it. I know some extra processes are needed but this seems like an unusual amount. I have included a screenshot of the tasks that appear. When I try to delete these, they reappear. I have tried various online solutions such as uninstalling and reinstalling, and checking various settings. It is affecting my computer's performance and I am not sure how to solve this. Thank you!
附加的畫面擷圖

所有回覆 (1)

更多選項

Hi, could you compare Firefox's built-in Task Manager (Shift+Esc)? It should list the same processes and show what they are used for, such as GPU or a specific website. Generally speaking, different sites are rendered in different processes to better ensure isolation from one another.

If the number of processes doesn't match up, there may be a hidden instance of Firefox running on your system that we can help you investigate.