https://connect.mozilla.org/t5/discussions/why-does-browser-tabs-unloadonlowmemory-set-false-by-default/m-p/45678#M16463 <P>This is pretty late but hopefully still useful to you.</P><P>According to gsvelto,&nbsp;<A href="https://news.ycombinator.com/item?id=33706117" target="_self">one of the developers</A>, it is because the detection of low memory doesn't work:</P><P>&nbsp;</P><BLOCKQUOTE>Yes it does, we've disabled tab unloading on Linux because low-memory detection just didn't work. We will re-enabled it sometimes down the line but only to avoid swap, not crashes. The OOM killer does already a good job with this change and we feel no need to do anything further (besides optimizing memory usage, but that's system-agnostic).<BR /><HR /></BLOCKQUOTE><P><BR /><BR /></P> Sat, 25 Nov 2023 21:03:13 GMT blankuser 2023-11-25T21:03:13Z https://connect.mozilla.org/t5/discussions/why-does-browser-tabs-unloadonlowmemory-set-false-by-default/m-p/18109#M7973 <P>In my environment (Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0), the <A href="https://support.mozilla.org/en-US/kb/unload-inactive-tabs-save-system-memory-firefox" target="_self">feature to unload inactive tabs</A> was disabled by default. Is there a reason for this, such as a significant performance impact?</P> Wed, 02 Nov 2022 00:23:59 GMT https://connect.mozilla.org/t5/discussions/why-does-browser-tabs-unloadonlowmemory-set-false-by-default/m-p/18109#M7973 Anonymous 2022-11-02T00:23:59Z https://connect.mozilla.org/t5/discussions/why-does-browser-tabs-unloadonlowmemory-set-false-by-default/m-p/45678#M16463 <P>This is pretty late but hopefully still useful to you.</P><P>According to gsvelto,&nbsp;<A href="https://news.ycombinator.com/item?id=33706117" target="_self">one of the developers</A>, it is because the detection of low memory doesn't work:</P><P>&nbsp;</P><BLOCKQUOTE>Yes it does, we've disabled tab unloading on Linux because low-memory detection just didn't work. We will re-enabled it sometimes down the line but only to avoid swap, not crashes. The OOM killer does already a good job with this change and we feel no need to do anything further (besides optimizing memory usage, but that's system-agnostic).<BR /><HR /></BLOCKQUOTE><P><BR /><BR /></P> Sat, 25 Nov 2023 21:03:13 GMT https://connect.mozilla.org/t5/discussions/why-does-browser-tabs-unloadonlowmemory-set-false-by-default/m-p/45678#M16463 blankuser 2023-11-25T21:03:13Z