Bug 675539 Comment 214 Edit History

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It should be possible to set Firefox to trigger tab discarding when **only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting) (Bug 1553260).**

Tab discarding when free physical memory is running low should be set as default. Alternatively, values (2) or (3) should be chosen automatically by Firefox based on available RAM: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available.
It should be possible to set Firefox to trigger tab discarding when **only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting) (Bug 1553260).** (I have filed for this bug)

Tab discarding when free physical memory is running low should be set as default. Alternatively, values (2) or (3) should be chosen automatically by Firefox based on available RAM: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available.
It should be possible to set Firefox to trigger tab discarding when **only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting)** (Bug 1553260)**.** (I have filed for this bug)

Tab discarding when free physical memory is running low should be set as default. Alternatively, values (2) or (3) should be chosen automatically by Firefox based on available RAM: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available.
It should be possible to set Firefox to trigger **tab discarding when only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting)** (Bug 1553260)**.** (I have filed for this bug)

Tab discarding when free physical memory is running low should be set as default. Alternatively, values (2) or (3) should be chosen automatically by Firefox based on available RAM: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available.
It should be possible to set Firefox to trigger **tab discarding when only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting)** (Bug 1553260)**.** (I have filed for this bug)

Tab discarding when free physical memory is running low should be set as default. Alternatively, values (2) or (3) should be chosen automatically by Firefox based on available RAM: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available.

Discussion: 
https://www.reddit.com/r/firefox/comments/brafza/latest_firefox_release_is_faster_than_ever_the/eoc44sk
https://www.reddit.com/r/firefox/comments/bncank/firefox_beta_keeps_reloading_tabs_on_a_pc_with_16/enis26r/?context=5
It should be possible to set Firefox to **trigger tab discarding when only free physical memory is running low**. User should have a choice to choose between 3 options for `browser.tabs.unloadOnLowMemory`:
(1) no tab discarding,
(2) tab discarding when the total amount of both free physical memory and swap space is running low (provided in Bug 675539),
(3) **tab discarding when free physical memory is running low (default setting)** (Bug 1553260)**.**
Tab discarding when free physical memory is running low should be set as default. 

*Alternatively*, values (2) or (3) should be chosen automatically by Firefox based on total RAM present in PC/device: (2) if less than 8 GB is available in PC, and (3) if 8 GB or more is available. This value could be slightly different for different operating systems; user could have option to change this value too. 

Discussion: 
https://www.reddit.com/r/firefox/comments/brafza/latest_firefox_release_is_faster_than_ever_the/eoc44sk
https://www.reddit.com/r/firefox/comments/bncank/firefox_beta_keeps_reloading_tabs_on_a_pc_with_16/enis26r/?context=5

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