Huge favicon allocations consuming a lot of memory

Add-ons Development
#1

Analyzing memory usage of the pop-up page of our extension, I found huge favicon allocations consuming a lot of memory, time to time.

1,458.14 MB (100.0%) -- explicit
├──1,451.93 MB (99.57%) -- window-objects
│  ├──1,322.10 MB (90.67%) -- top(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/popup-v2/popup-v2.html, id=2115)
│  │  ├──1,089.11 MB (74.69%) -- js-zone(0x103262200)
│  │  │  ├──1,080.90 MB (74.13%) -- strings
│  │  │  │  ├────198.53 MB (13.62%) -- string(length=169922, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │    ├──198.52 MB (13.61%) ── malloc-heap/two-byte
│  │  │  │  │    └────0.01 MB (00.00%) ── gc-heap/two-byte
│  │  │  │  ├────161.47 MB (11.07%) ++ (397 tiny)
│  │  │  │  ├────113.48 MB (07.78%) -- string(length=65462, copies=1815, "data:image/png;base64,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" (truncated))
│  │  │  │  │    ├──113.44 MB (07.78%) ── malloc-heap/latin1
│  │  │  │  │    └────0.04 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────94.55 MB (06.48%) -- string(length=160705, copies=605, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──94.53 MB (06.48%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────92.26 MB (06.33%) -- string(length=7265, copies=8570, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──92.06 MB (06.31%) -- malloc-heap
│  │  │  │  │     │  ├──50.22 MB (03.44%) ── two-byte
│  │  │  │  │     │  └──41.84 MB (02.87%) ── latin1
│  │  │  │  │     └───0.20 MB (00.01%) ++ gc-heap
│  │  │  │  ├─────56.75 MB (03.89%) -- string(length=34785, copies=1210, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──56.72 MB (03.89%) ── malloc-heap/latin1
│  │  │  │  │     └───0.03 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────46.95 MB (03.22%) -- string(length=7265, copies=4755, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──46.84 MB (03.21%) -- malloc-heap
│  │  │  │  │     │  ├──27.45 MB (01.88%) ── latin1
│  │  │  │  │     │  └──19.39 MB (01.33%) ── two-byte
│  │  │  │  │     └───0.11 MB (00.01%) ++ gc-heap
│  │  │  │  ├─────37.84 MB (02.60%) -- string(length=20141, copies=1210, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──37.81 MB (02.59%) ── malloc-heap/latin1
│  │  │  │  │     └───0.03 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────37.83 MB (02.59%) -- string(length=49990, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──37.81 MB (02.59%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────37.83 MB (02.59%) -- string(length=64894, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──37.81 MB (02.59%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────28.37 MB (01.95%) -- string(length=33145, copies=605, "data:image/x-icon;base64,AAABAAQAEBAAAAEAIABoBAAARgAAABgYAAABACAAiAkAAK4EAAAgIAAAAQAgAKgQAAA2DgAAQEAAAAEAIAAoQgAA3h4AACgAAAAQAAAAIAAAAAEAIAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAABYnxBiWZ4Q71idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1meEO9ZnhBhWZ4Q71idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WZ4Q71idD/9YnQ//WJ0P/1idD/9YnQ////////////9wqzH/WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P////////////cKsx/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD////////////3CrMf9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ////////////9wqzH/WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P////////////cKsx/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD////////////3CrMf9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//WJ0P/1idD/9YnQ//cKsx/3CrMf9wqzH///////////+Et0//cKsx/3CrMf9wqzH/cKsx/3CrMf9wqzH/WJ0P/1idD/9YnQ//WJ0P/////////////////////////////////////////////////////////////////1idD/9YnQ" (truncated))
│  │  │  │  │     ├──28.36 MB (01.94%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────28.37 MB (01.95%) -- string(length=42745, copies=605, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──28.36 MB (01.94%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────24.76 MB (01.70%) -- string(length=1042, copies=16113, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──24.39 MB (01.67%) ++ malloc-heap
│  │  │  │  │     └───0.37 MB (00.03%) ++ gc-heap
│  │  │  │  ├─────23.70 MB (01.63%) -- string(length=5758, copies=3025, "data:image/svg+xml;base64,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" (truncated))
│  │  │  │  │     ├──23.63 MB (01.62%) ── malloc-heap/latin1
│  │  │  │  │     └───0.07 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────23.44 MB (01.61%) -- string(length=7265, copies=1785, "data:image/x-icon;base64,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" (truncated))
│  │  │  │  │     ├──23.40 MB (01.60%) -- malloc-heap
│  │  │  │  │     │  ├──18.91 MB (01.30%) ── two-byte
│  │  │  │  │     │  └───4.49 MB (00.31%) ── latin1
│  │  │  │  │     └───0.04 MB (00.00%) ++ gc-heap
│  │  │  │  ├─────18.92 MB (01.30%) -- string(length=20366, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──18.91 MB (01.30%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────18.92 MB (01.30%) -- string(length=23250, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──18.91 MB (01.30%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  ├─────18.92 MB (01.30%) -- string(length=25422, copies=605, "data:image/png;base64,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" (truncated))
│  │  │  │  │     ├──18.91 MB (01.30%) ── malloc-heap/latin1
│  │  │  │  │     └───0.01 MB (00.00%) ── gc-heap/latin1
│  │  │  │  └─────18.02 MB (01.24%) -- string(length=5741, copies=2300, "data:image/x-icon;base64,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" (truncated))
│  │  │  │        ├──17.97 MB (01.23%) ── malloc-heap/latin1
│  │  │  │        └───0.05 MB (00.00%) ── gc-heap/latin1
│  │  │  └──────8.22 MB (00.56%) ++ (15 tiny)
│  │  └────232.99 MB (15.98%) -- active/window(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/popup-v2/popup-v2.html)
│  │       ├──117.30 MB (08.04%) -- dom
│  │       │  ├──112.45 MB (07.71%) ── orphan-nodes
│  │       │  └────4.85 MB (00.33%) ++ (4 tiny)
│  │       ├──109.05 MB (07.48%) -- js-realm(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/popup-v2/popup-v2.html)
│  │       │  ├──107.50 MB (07.37%) -- classes
│  │       │  │  ├───60.36 MB (04.14%) -- class(Object)/objects
│  │       │  │  │   ├──32.42 MB (02.22%) ── gc-heap
│  │       │  │  │   └──27.94 MB (01.92%) -- malloc-heap
│  │       │  │  │      ├──27.90 MB (01.91%) ── slots
│  │       │  │  │      └───0.04 MB (00.00%) ── elements/normal
│  │       │  │  └───47.14 MB (03.23%) ++ (25 tiny)
│  │       │  └────1.55 MB (00.11%) ++ (6 tiny)
│  │       └────6.64 MB (00.46%) ++ (2 tiny)
│  ├─────70.54 MB (04.84%) -- top(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/panorama/panorama.html, id=2219)
│  │     ├──57.08 MB (03.91%) -- active/window(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/panorama/panorama.html)
│  │     │  ├──40.85 MB (02.80%) -- dom
│  │     │  │  ├──34.79 MB (02.39%) ── orphan-nodes
│  │     │  │  └───6.06 MB (00.42%) ++ (4 tiny)
│  │     │  └──16.23 MB (01.11%) ++ (3 tiny)
│  │     └──13.45 MB (00.92%) ++ js-zone(0x103262f00)
│  ├─────27.51 MB (01.89%) -- top(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/debugging/debugging.html, id=2439)
│  │     ├──26.44 MB (01.81%) -- active/window(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/debugging/debugging.html)
│  │     │  ├──17.43 MB (01.20%) -- dom
│  │     │  │  ├──15.87 MB (01.09%) ── orphan-nodes
│  │     │  │  └───1.56 MB (00.11%) ++ (4 tiny)
│  │     │  └───9.01 MB (00.62%) ++ (3 tiny)
│  │     └───1.07 MB (00.07%) ++ js-zone(0x103271900)
│  ├─────22.83 MB (01.57%) ++ top(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/background/background.html, id=2014)
│  └──────8.95 MB (00.61%) ++ top(moz-extension://4b40897b-52cc-4e52-a71a-16a481664206/pages/options/options.html, id=2016)
└──────6.21 MB (00.43%) ++ (2 tiny)

Why and how is this happening?

#2

Does this reproduce in a new profile with only your extension?

If so, can you please file a bug with extension link and steps to reproduce?

1 Like
#3

Okay, I will test the extension that way.

#4

This tends to happen when opening the browser for hours with many open tabs, so I am not sure when this happens. I just opened a clean profile on Nightly and opened some tabs and I am watching for any strange behavior.

#5

@zombie
With only a few tabs open, larger memory compared to actual favicon strings is used here. Is this a bug?

│  │  └──19,582,560 B (32.05%) -- js-zone(0x10536b000)
│  │     ├──17,425,056 B (28.52%) -- strings
│  │     │  ├───6,492,816 B (10.63%) -- string(length=9901, copies=198, "data:image/x-icon;base64,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" (truncated))
│  │     │  │   ├──6,488,064 B (10.62%) ── malloc-heap/two-byte
│  │     │  │   └──────4,752 B (00.01%) ── gc-heap/two-byte
│  │     │  ├───5,212,656 B (08.53%) -- string(length=20141, copies=106, "data:image/x-icon;base64,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" (truncated))
│  │     │  │   ├──5,210,112 B (08.53%) ── malloc-heap/two-byte
│  │     │  │   └──────2,544 B (00.00%) ── gc-heap/two-byte
│  │     │  ├───1,739,248 B (02.85%) -- string(length=7265, copies=106, "data:image/x-icon;base64,AAABAAIAEBAAAAEAIABoBAAAJgAAACAgAAABACAAqBAAAI4EAAAoAAAAEAAAACAAAAABACAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA//8AA9jIAGLcywAsAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA//8AAtjIAKPXyAD/2MgA8tjLADsAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA//8AAdnIAJ/XyAD/18gA/9fIAP/XyADz2ckAPQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAANfIAJrXyAD/18gA/9fIAP/XyAD/18gA/9fJAPTbyQA5AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAN/fAAjYyQDw18gA/9fIAP/XyAD/18gA/9fIAP/YyAD82ckAfwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP//AAIAAAAA//8AAt7OAB/XyQDs18gA/9fIAP/YyQCKAAAAAAAAAAAAAAAA//8AAwAAAAAAAAAA//8AAtjIAJ7YyADWAAAAAAAAAAAAAAAA2MkAy9fIAP/XyAD/2MgATwAAAAAAAAAA18oATdjJAO/ZyQA9AAAAANfIAJnXyAD/2MkA+OrVAAwAAAAA18oATdfIAP/XyAD/18gA/9fJAMHmzAAKAAAAANfJAHrXyAD/18gA89zLACzYyQDe18gA/9fIAP/YyQDc2MkAt9fJAPnXyAD/18gA/9fIAP/XyAD/2MgA39jJALjXyQD618gA/9fIAP/YyABi2coANdjJAPDXyAD/18gA/9fIAP/XyAD/18gA/9fIAP/XyAD/18gA/9fIAP/XyAD/18gA/9fIAP/XyQCm//8AAwAAAADZywA22MkA8NfIAP/XyAD/18gA/9fIAP/XyA" (truncated))
│  │     │  │   ├──1,736,704 B (02.84%) ── malloc-heap/two-byte
│  │     │  │   └──────2,544 B (00.00%) ── gc-heap/two-byte
│  │     │  ├───1,327,752 B (02.17%) -- string(length=20141, copies=27, "data:image/x-icon;base64,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" (truncated))
│  │     │  │   ├──1,327,104 B (02.17%) ── malloc-heap/two-byte
│  │     │  │   └────────648 B (00.00%) ── gc-heap/two-byte
│  │     │  ├───1,050,112 B (01.72%) -- string(length=5181, copies=64, "data:image/x-icon;base64,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" (truncated))
│  │     │  │   ├──1,048,576 B (01.72%) ── malloc-heap/two-byte
│  │     │  │   └──────1,536 B (00.00%) ── gc-heap/two-byte
│  │     │  ├─────951,664 B (01.56%) -- string(length=7953, copies=58, "data:image/x-icon;base64,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" (truncated))
│  │     │  │     ├──950,272 B (01.56%) ── malloc-heap/two-byte
│  │     │  │     └────1,392 B (00.00%) ── gc-heap/two-byte
│  │     │  ├─────262,528 B (00.43%) -- string(length=7265, copies=16, "data:image/x-icon;base64,AAABAAIAEBAAAAEAIABoBAAAJgAAACAgAAABACAAqBAAAI4EAAAoAAAAEAAAACAAAAABACAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAP///zD9/f2W/f392P39/fn9/f35/f391/39/ZT+/v4uAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA/v7+Cf39/Zn///////////////////////////////////////////39/ZX///8IAAAAAAAAAAAAAAAA/v7+Cf39/cH/////+v35/7TZp/92ul3/WKs6/1iqOv9yuFn/rNWd//j79v///////f39v////wgAAAAAAAAAAP39/Zn/////7PXp/3G3WP9TqDT/U6g0/1OoNP9TqDT/U6g0/1OoNP+Or1j//vDo///////9/f2VAAAAAP///zD/////+vz5/3G3V/9TqDT/WKo6/6LQkf/U6cz/1urO/6rUm/+Zo0r/8IZB//adZ////v7///////7+/i79/f2Y/////4nWzf9Lqkj/Vqo4/9Xqzv///////////////////////ebY//SHRv/0hUL//NjD///////9/f2U/f392v////8sxPH/Ebzt/43RsP/////////////////////////////////4roL/9IVC//i1jf///////f391/39/fr/////Cr37/wW8+/+16/7/////////////////9IVC//SFQv/0hUL/9IVC//SFQv/3pnX///////39/fn9/f36/////wu++/8FvPv/tuz+//////////////////SFQv/0hUL/9IVC//SFQv/0hUL/96p7///////9/f35/f392/////81yfz/CrL5/2uk9v///////////////////////////////////////////////////////f392P39/Zn/////ks/7/zdS7P84Rur/0NT6//////////" (truncated))
│  │     │  │     ├──262,144 B (00.43%) ── malloc-heap/two-byte
│  │     │  │     └──────384 B (00.00%) ── gc-heap/two-byte
│  │     │  ├─────191,216 B (00.31%) -- string(<non-notable strings>)
│  │     │  │     ├──100,464 B (00.16%) -- malloc-heap
│  │     │  │     │  ├───59,584 B (00.10%) ── latin1
│  │     │  │     │  └───40,880 B (00.07%) ── two-byte
│  │     │  │     └───90,752 B (00.15%) -- gc-heap
│  │     │  │         ├──79,112 B (00.13%) ── latin1
│  │     │  │         └──11,640 B (00.02%) ── two-byte
│  │     │  ├──────85,352 B (00.14%) -- string(length=826, copies=47, "data:image/svg+xml;base64,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")
│  │     │  │      ├──84,224 B (00.14%) ── malloc-heap/two-byte
│  │     │  │      └───1,128 B (00.00%) ── gc-heap/two-byte
│  │     │  ├──────32,472 B (00.05%) -- string(length=1738, copies=9, "data:image/svg+xml;base64,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" (truncated))
│  │     │  │      ├──32,256 B (00.05%) ── malloc-heap/two-byte
│  │     │  │      └─────216 B (00.00%) ── gc-heap/two-byte
│  │     │  ├──────31,392 B (00.05%) -- string(length=490, copies=36, "https://jp.hotels.com/?locale=ja_JP&pos=HCOM_JP&siteid=300000037&rffrid=sem.hcom.JP.AMP.003.00.03.s.s.kwrd=device.creative.15250801.219143.adposition.targetid.loc_physical_ms.loc_interest_ms.keyword.1683109985401000000.aw.ds&PSRC=_psrc&semcid=HCOM-JP.UB.ADMARKETPLACE.GT-device-JA.HOTEL&SEMDTL=a1219143.b115250801.g1targetid.l1.e1device.m1gclid.r1_expediakwid.c1_expediaadid.j1loc_physical_ms.k1loc_interest_ms.d1creative.h1matchtype.i1feeditemid.n1.o1.p1.q1.s1.t1.x1.f1.u1.v1.w1&mfadid=adm")
│  │     │  │      ├──30,528 B (00.05%) -- malloc-heap
│  │     │  │      │  ├──24,576 B (00.04%) ── two-byte
│  │     │  │      │  └───5,952 B (00.01%) ── latin1
│  │     │  │      └─────864 B (00.00%) -- gc-heap
│  │     │  │            ├──576 B (00.00%) ── two-byte
│  │     │  │            └──288 B (00.00%) ── latin1
│  │     │  ├──────24,648 B (00.04%) -- string(length=3673, copies=3, "data:image/x-icon;base64,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" (truncated))
│  │     │  │      ├──24,576 B (00.04%) ── malloc-heap/two-byte
│  │     │  │      └──────72 B (00.00%) ── gc-heap/two-byte
│  │     │  └──────23,200 B (00.04%) -- string(length=137, copies=68, "https://addons.mozilla.org/en-US/firefox/addon/container-tab-groups/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search")
│  │     │         ├──21,568 B (00.04%) -- malloc-heap
│  │     │         │  ├──16,384 B (00.03%) ── two-byte
│  │     │         │  └───5,184 B (00.01%) ── latin1
│  │     │         └───1,632 B (00.00%) -- gc-heap
│  │     │             ├────864 B (00.00%) ── latin1
│  │     │             └────768 B (00.00%) ── two-byte
│  │     ├─────876,752 B (01.44%) ── unused-gc-things
│  │     ├─────393,216 B (00.64%) -- code
│  │     │     ├──374,152 B (00.61%) ── baseline
│  │     │     └───19,064 B (00.03%) ── unused
│  │     ├─────268,328 B (00.44%) -- property-maps
│  │     │     ├──148,072 B (00.24%) -- gc-heap
│  │     │     │  ├───71,136 B (00.12%) ── compact
│  │     │     │  ├───45,832 B (00.08%) ── normal
│  │     │     │  └───31,104 B (00.05%) ── dict
│  │     │     └──120,256 B (00.20%) -- malloc-heap
│  │     │        ├──110,336 B (00.18%) ── tables
│  │     │        └────9,920 B (00.02%) ── children
│  │     ├─────184,272 B (00.30%) -- scopes
│  │     │     ├──104,304 B (00.17%) ── malloc-heap
│  │     │     └───79,968 B (00.13%) ── gc-heap
│  │     ├─────131,072 B (00.21%) ── baseline/optimized-stubs
│  │     ├──────71,000 B (00.12%) ── gc-heap-arena-admin
│  │     ├──────52,176 B (00.09%) ── compartments/cross-compartment-wrapper-tables
│  │     ├──────43,720 B (00.07%) -- shapes
│  │     │      ├──42,936 B (00.07%) -- gc-heap
│  │     │      │  ├──35,008 B (00.06%) ── shared
│  │     │      │  ├───7,128 B (00.01%) ── base
│  │     │      │  └─────800 B (00.00%) ── dict
│  │     │      └─────784 B (00.00%) ── malloc-heap/shape-cache
│  │     ├──────43,712 B (00.07%) ── shape-tables
│  │     ├──────43,200 B (00.07%) ── getter-setters-gc-heap
│  │     ├──────16,384 B (00.03%) ── unique-id-map
│  │     ├──────14,240 B (00.02%) ── jit-codes-gc-heap
│  │     ├───────8,464 B (00.01%) ── jit-zone
│  │     ├───────8,192 B (00.01%) ── propmap-tables
│  │     └───────2,776 B (00.00%) -- sundries
│  │             ├──2,176 B (00.00%) ── malloc-heap
│  │             └────600 B (00.00%) ── gc-heap
#6

It happened. Firefox Nightly with a clean profile went unresponsive. The sad thing is since it is unresponsive, I could not grab memory reports.

#7

Possibly incomplete, but I got it.

memory-report.json.zip (109.1 KB)

#8

This time, structured clone part seems broken.

Main Process (pid 94378)
Explicit Allocations

18,602,202,401 B (100.0%) -- explicit
├──17,095,207,168 B (91.90%) -- dom
│  ├──17,094,551,776 B (91.90%) ── structured-clone-holder [25867]
│  └─────────655,392 B (00.00%) ── event-listener-managers-hash
├───1,079,847,560 B (05.80%) -- heap-overhead
│   ├──1,016,212,848 B (05.46%) ── bookkeeping
│   ├─────55,908,784 B (00.30%) -- bin-unused
│   │     ├──11,182,080 B (00.06%) ── bin-8192
│   │     ├───5,306,368 B (00.03%) ── bin-1024
│   │     ├───3,463,168 B (00.02%) ── bin-2048