jackos1998
82cbe67010
Wrap Firefox with a privileged AutoConfig controller that unloads tabs under configurable MemAvailable hysteresis and exposes an on-demand reclaim command. Enable it by default for Linux GUI homes.
47 lines
1.3 KiB
Nix
47 lines
1.3 KiB
Nix
{
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lib,
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firefox-unwrapped,
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wrapFirefox,
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writeText,
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writeScriptBin,
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symlinkJoin,
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python3,
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lowAvailableMiB ? 2048,
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highAvailableMiB ? 3072,
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pollIntervalMs ? 1000,
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minInactiveMs ? 300000,
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}:
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let
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autoConfig = writeText "firefox-memory-control.js" ''
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defaultPref("firefox.memoryControl.enabled", true);
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defaultPref("firefox.memoryControl.lowAvailableMiB", ${toString lowAvailableMiB});
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defaultPref("firefox.memoryControl.highAvailableMiB", ${toString highAvailableMiB});
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defaultPref("firefox.memoryControl.pollIntervalMs", ${toString pollIntervalMs});
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defaultPref("firefox.memoryControl.minInactiveMs", ${toString minInactiveMs});
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${builtins.readFile ./autoconfig.js}
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'';
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firefox = wrapFirefox firefox-unwrapped {
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extraAutoConfig = ''
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pref("general.config.sandbox_enabled", false);
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'';
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extraPrefsFiles = [ autoConfig ];
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};
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freeMemory = writeScriptBin "firefox-free-memory" ''
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#!${python3}/bin/python3
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${builtins.readFile ./firefox-free-memory.py}
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'';
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in
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symlinkJoin {
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name = "firefox-memory-control-${firefox.version}";
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paths = [ firefox freeMemory ];
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meta = firefox.meta // {
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description = "Firefox with memory-pressure tab unloading and an on-demand reclaim utility";
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mainProgram = "firefox";
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platforms = lib.platforms.linux;
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};
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}
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