Firefoxのメモリ使用を減らす

about:config設定値

table:config

javascript.options.mem.gc_max_helper_threads 2

layers.offmainthreadcomposition.force-disabled true

javascript.options.external_thread_pool false

browser.tabs.remote.dataUriInDefaultWebProcess true

browser.tabs.remote.separatePrivilegedContentProcess false

browser.tabs.remote.separatePrivilegedMozillaWebContentProcess false

layout.css.stylo-threads 1

gfx.vsync.force-disable-waitforvblank true

network.decompression_off_mainthread2 false

gfx.webrender.wait-gpu-finished.disabled true

widget.wayland.vsync.enabled false

javascript.options.spectre.disable_for_isolated_content false セキュリティ対策

javascript.options.baselinejit.threshold 1000

javascript.options.compact_on_user_inactive_delay 2000

javascript.options.gc_delay 400

javascript.options.gc_delay.first 1000

javascript.options.gc_delay.full 30000

javascript.options.ion.offthread_compilation false

javascript.options.ion.threshold 15000

javascript.options.mem.gc_allocation_threshold_mb 3

javascript.options.mem.gc_high_frequency_large_heap_growth 120

javascript.options.mem.gc_high_frequency_small_heap_growth 120

javascript.options.mem.nursery.max_kb 32768

javascript.options.mem.nursery.min_kb 64

javascript.options.parallel_parsing false

javascript.options.spectre.jit_to_cxx_calls true

dom.ipc.processCount 1 プロセス分離しない

dom.ipc.processCount.webIsolated 1 プロセス分離しない

dom.ipc.processPrelaunch.enabled false プロセスを事前起動しない

fission.autostart false プロセス分離しない

fission.bfcacheInParent false bfcache無効化

media.hardware-video-decoding.enabled false GPU無効化

webgl.forbid-hardware true GPU無効化

gfx.webrender.software true GPU無効化

gfx.webrender.software.d3d11 false

webgl.forbid-software false ソフトウェアWebGLを許容

gfx.webrender.unaccelerated-widget.force true

network.process.enabled false ネットワークプロセスを無効化

dom.ipc.keepProcessesAlive.privilegedabout 0

media.allow-audio-non-utility true

media.utility-process.enabled false ※Windowsではできない?

media.rdd-process.enabled false

gfx.webrender.multithreading false シングルスレッドで描画する

network.http.http2.enabled false

network.http.http2.enforce-tls-profile false

network.http.http2.websockets false

network.http.http3.enable false

network.http.http3.enable_0rtt false

network.http.max-urgent-start-excessive-connections-per-host 0

network.http.speculative-parallel-limit 0

network.early-hints.preconnect.max_connections 0

network.http.max-connections 32

network.http.max-persistent-connections-per-server 2

network.http.max-urgent-start-excessive-connections-per-host 0

network.websocket.max-connections 64

network.early-hints.preconnect.enabled false

network.early-hints.preconnect.max_connections 0

network.preconnect false

network.http.rcwn.enabled false

network.http.rcwn.race_with_non_ssd false

browser.cache.disk.capacity 4000000

browser.cache.disk.max_entry_size 10000 デフォルトのほうが高い

browser.cache.disk.smart_size.enabled false

dom.ipc.forkserver.enable false

table:極限まで節約するなら

javascript.options.baselinejit false

javascript.options.main_process_disable_jit true

javascript.options.wasm_baselinejit true これがないとwasmがエラーになる

javascript.options.wasm_optimizingjit false

javascript.options.ion false