Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

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

Will Firefox have a memory usage limit like it is there in Microsoft Edge

  • 1 回覆
  • 0 有這個問題
  • 211 次檢視
  • 最近回覆由 Denys
  • 已解決

LimuxSpring
LimuxSpring

In 2024-25 Microsoft Edge gained the ability to limit the usage of physical RAM that the processes uses. Once that limit is reached tabs are put to sleep or are unloaded. So a user of Microsoft Edge could restrict the memory usage to say 1GB or 2GB or 3GB and so on till the maximum available physical RAM.

Does Firefox have such an ability? Is there some flag or settings in about:config that can be enabled for a similar feature to be used? Does Firefox have ability to put tabs to sleep once SWAP is started to be used? Is there some flag or settings in about:config that can be enabled for a similar feature to be used?

If none of one of the above is not available with Firefox then will Firefox add this feature as part of the browser in the future?

In 2024-25 Microsoft Edge gained the [https://blogs.windows.com/msedgedev/2024/05/02/control-edge-memory-usage-with-resource-controls/ ability to limit the usage of physical RAM] that the processes uses. Once that limit is reached tabs are put to sleep or are unloaded. So a user of Microsoft Edge could restrict the memory usage to say 1GB or 2GB or 3GB and so on till the maximum available physical RAM. Does Firefox have such an ability? Is there some flag or settings in '''about:config''' that can be enabled for a similar feature to be used? Does Firefox have ability to put tabs to sleep once SWAP is started to be used? Is there some flag or settings in '''about:config''' that can be enabled for a similar feature to be used? If none of one of the above is not available with Firefox then will Firefox add this feature as part of the browser in the future?

被選擇的解決方法

Hi,

Thank you for reaching out! As far as I know, Firefox currently doesn't have such a feature. There are several suggestions, though, that you might want to vote for (give kudos to):

The closest thing that already exists is automatic tab unloading on memory pressure (which, from my experience, is not triggered very often).

從原來的回覆中察看解決方案 👍 0

所有回覆 (1)

Denys
Denys
  • Moderator
  • Top 10 Contributor

選擇的解決方法

Hi,

Thank you for reaching out! As far as I know, Firefox currently doesn't have such a feature. There are several suggestions, though, that you might want to vote for (give kudos to):

The closest thing that already exists is automatic tab unloading on memory pressure (which, from my experience, is not triggered very often).

由 Denys 於 修改

問個問題

如果您還沒有帳號，您必須先登入帳號 來回覆文章。還沒有帳號的話，只能發問新問題。