Memory report from Nightly (https://hg.mozilla.org/mozilla-central/rev/2e4867d8cc9813869bd80f5201d3f7d84afcd412) . When this report was generated the "system-level" memory was ~8.4GB but none of the Firefox processes were taking more than 200-400MB RAM.
Bug 1880625 Comment 12 Edit History
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Memory report from Nightly (https://hg.mozilla.org/mozilla-central/rev/2e4867d8cc9813869bd80f5201d3f7d84afcd412) . When this report was generated the "system-level" memory was ~8.4GB (from a baseline of ~4.7GB) but none of the Firefox processes were taking more than 200-400MB RAM.