Will Firefox have a memory usage limit like it is there in Microsoft Edge
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?
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選ばれた解決策
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):
- https://connect.mozilla.org/t5/ideas/resource-limiter/idi-p/28310
- https://connect.mozilla.org/t5/ideas/limitable-ram-cpu-usage/idi-p/106176
- https://connect.mozilla.org/t5/ideas/add-per-tab-memory-limits-to-prevent-system-freeze-possible-dos/idi-p/103226
The closest thing that already exists is automatic tab unloading on memory pressure (which, from my experience, is not triggered very often).
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