metamask-extension fix: prevent memory leaks in `useAsync` hooks

Description

Implements manual, explicit management of cache/state cleanup in useAsync{Callback,Result} instead of relying on React hooks. The motivation is to prevent memory leaks especially from large/frequent fetch requests.

(This only pertains to memory managed by react, not e.g. IndexedDB buildup due to fetchWithCache calls or background caching.)

Cleanup function guarantees that e.g. fetch results are not kept in closure causing memory leaks.
Wrap return array in useMemo.
- Mitigates issue of every asyncFn/execute call allocating a new output object/array and holding onto the reference, potentially leading to memory leaks.
- Prevent re-renders if result object reference has changed but its properties haven't.
Executing asyncFnRef.current instead of asyncFn, and then explicitly cleaning it up ensures gc of long-lived async operations that could potentially hold on to component data references after unmount.

Optimizations:

The reference to the execute callback returned by useAsyncCallback never needs to change if both itself and the reference to asyncFn (its only reactive variable that is external to the hook) are managed with refs.
asyncFn, deps passed to useAsyncCallback change reference on every re-render. Use refs to maintain stable references throughout lifecycle, and only update if deps have changed.

Once we get to React v19, we may consider migrating entirely to use{,Transition,Optimistic,ActionState,FormStatus}, under the assumption that they provide safer memory management.

Related issues

https://github.com/MetaMask/metamask-extension/issues/33466
- https://github.com/MetaMask/metamask-extension/pull/33579
- https://github.com/MetaMask/metamask-extension/pull/33577

Manual testing steps

Go to this page...

Screenshots/Recordings

Before

After

Pre-merge author checklist

[ ] I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
[ ] I've completed the PR template to the best of my ability
[ ] I’ve included tests if applicable
[ ] I’ve documented my code using JSDoc format if applicable
[ ] I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

[ ] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
[ ] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

Jun 12 '25 22:06 MajorLift

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

Jun 12 '25 22:06 github-actions[bot]

Builds ready [dbd3854]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1219 ± 64 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1219	1091	1392	64	1258	1356
			load	1060	941	1203	62	1088	1195
			domContentLoaded	1053	933	1197	62	1081	1189
			domInteractive	17	14	34	4	16	31
			firstPaint	798	95	1205	397	1071	1186
			backgroundConnect	7	4	32	5	7	21
			firstReactRender	21	14	47	6	20	35
			getState	14	6	33	7	19	27
			initialActions	0	0	1	0	0	0
			loadScripts	807	698	945	60	834	928
			setupStore	8	5	17	2	8	13
	Webpack	Home	uiStartup	2019	1454	2518	241	2169	2442
			load	1573	1120	1926	191	1712	1865
			domContentLoaded	1567	1115	1918	190	1708	1856
			domInteractive	15	11	65	10	13	46
			firstPaint	150	67	263	41	164	229
			backgroundConnect	23	12	373	36	22	31
			firstReactRender	134	45	354	107	117	346
			getState	10	4	26	4	11	18
			initialActions	2	1	4	1	3	3
			loadScripts	1564	1109	1907	189	1704	1845
			setupStore	48	7	324	96	17	310
Firefox	Browserify	Home	uiStartup	1308	1170	1532	81	1349	1479
			load	1163	1027	1380	78	1211	1325
			domContentLoaded	1163	1027	1380	78	1210	1325
			domInteractive	99	34	166	25	111	145
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	13	53	6	21	28
			firstReactRender	23	21	28	1	23	25
			getState	8	4	38	5	8	11
			initialActions	0	0	1	0	0	1
			loadScripts	1146	1017	1358	77	1195	1301
			setupStore	7	4	38	6	6	11
	Webpack	Home	uiStartup	1501	1338	1770	105	1569	1736
			load	1305	1155	1596	107	1367	1552
			domContentLoaded	1305	1155	1596	107	1367	1551
			domInteractive	81	33	181	20	87	121
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	21	15	80	7	22	26
			firstReactRender	40	29	47	3	42	46
			getState	9	4	31	6	9	29
			initialActions	0	0	2	1	1	1
			loadScripts	1287	1140	1578	108	1349	1534
			setupStore	8	5	78	7	8	9

Benchmark value 1195 exceeds gate value 1190 for chrome browserify home p95 load
Benchmark value 1189 exceeds gate value 1180 for chrome browserify home p95 domContentLoaded
Benchmark value 1186 exceeds gate value 1180 for chrome browserify home p95 firstPaint
Benchmark value 22 exceeds gate value 18 for chrome browserify home p95 backgroundConnect
Benchmark value 49 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 310 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 40 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 19ms | Sum of p95 exceeds: 269ms
Sum of all benchmark exceeds: 288ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

background: 0 Bytes (0%)
ui: 527 Bytes (0.01%)
common: 264 Bytes (0%)

Jun 12 '25 23:06 metamaskbot

Builds ready [80becf1]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1225 ± 61 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1225	1128	1463	61	1255	1347
			load	1060	939	1289	63	1095	1169
			domContentLoaded	1053	933	1282	62	1089	1164
			domInteractive	17	14	38	4	17	30
			firstPaint	810	81	1294	397	1082	1169
			backgroundConnect	8	4	35	6	8	25
			firstReactRender	23	15	134	14	22	48
			getState	15	6	71	9	20	32
			initialActions	0	0	1	0	0	0
			loadScripts	804	683	1007	60	840	910
			setupStore	9	5	29	5	9	20
	Webpack	Home	uiStartup	2163	1707	2597	215	2304	2562
			load	1685	1322	2022	178	1795	1986
			domContentLoaded	1679	1318	2018	177	1788	1976
			domInteractive	17	11	94	13	13	54
			firstPaint	154	61	405	60	183	265
			backgroundConnect	21	10	40	6	24	33
			firstReactRender	155	46	372	112	305	350
			getState	18	5	325	43	14	25
			initialActions	3	1	7	1	4	4
			loadScripts	1676	1316	2016	176	1784	1964
			setupStore	30	6	323	65	19	310
Firefox	Browserify	Home	uiStartup	1317	1173	1534	89	1380	1505
			load	1169	1011	1394	89	1211	1366
			domContentLoaded	1169	1010	1394	89	1211	1366
			domInteractive	97	35	185	26	110	142
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	22	13	105	14	20	49
			firstReactRender	23	20	55	5	24	27
			getState	7	4	38	3	8	8
			initialActions	0	0	1	0	0	1
			loadScripts	1149	996	1360	86	1192	1334
			setupStore	6	4	39	4	6	12
	Webpack	Home	uiStartup	1509	1325	1782	106	1596	1698
			load	1317	1145	1598	112	1418	1525
			domContentLoaded	1316	1144	1598	112	1418	1524
			domInteractive	80	32	175	18	88	116
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	16	41	4	21	26
			firstReactRender	40	30	46	3	43	45
			getState	8	5	30	4	8	10
			initialActions	0	0	2	1	1	1
			loadScripts	1298	1128	1581	112	1402	1508
			setupStore	7	5	25	2	7	9

Benchmark value 811 exceeds gate value 800 for chrome browserify home mean firstPaint
Benchmark value 25 exceeds gate value 18 for chrome browserify home p95 backgroundConnect
Benchmark value 48 exceeds gate value 45 for chrome browserify home p95 firstReactRender
Benchmark value 20 exceeds gate value 17 for chrome browserify home p95 setupStore
Benchmark value 2562 exceeds gate value 2454 for chrome webpack home p95 uiStartup
Benchmark value 310 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 41 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 14ms | Sum of p95 exceeds: 366ms
Sum of all benchmark exceeds: 380ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

background: 0 Bytes (0%)
ui: 490 Bytes (0.01%)
common: 264 Bytes (0%)

Jun 12 '25 23:06 metamaskbot

Builds ready [edc8ceb]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1206 ± 78 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1206	1088	1705	78	1245	1337
			load	1051	929	1511	74	1085	1161
			domContentLoaded	1045	922	1503	75	1079	1152
			domInteractive	17	13	50	6	16	30
			firstPaint	775	134	1509	409	1076	1160
			backgroundConnect	8	4	26	5	7	24
			firstReactRender	20	16	42	5	20	37
			getState	13	5	26	6	19	25
			initialActions	0	0	1	0	0	1
			loadScripts	801	684	1244	73	841	909
			setupStore	8	5	18	2	8	13
	Webpack	Home	uiStartup	2063	1656	2490	215	2193	2430
			load	1605	1216	1906	176	1736	1859
			domContentLoaded	1599	1208	1897	176	1731	1848
			domInteractive	16	11	61	10	13	48
			firstPaint	156	61	305	49	188	255
			backgroundConnect	25	11	425	41	24	35
			firstReactRender	119	45	351	88	118	321
			getState	14	4	304	30	12	22
			initialActions	5	1	243	24	3	4
			loadScripts	1596	1205	1886	174	1728	1837
			setupStore	53	7	315	98	19	311
Firefox	Browserify	Home	uiStartup	1307	1165	1576	72	1341	1447
			load	1166	1035	1429	74	1207	1308
			domContentLoaded	1166	1035	1429	74	1206	1308
			domInteractive	99	36	191	26	110	145
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	19	13	51	5	20	28
			firstReactRender	22	20	36	2	23	26
			getState	8	4	63	6	8	9
			initialActions	0	0	1	0	0	1
			loadScripts	1149	1021	1401	72	1191	1290
			setupStore	7	4	36	5	6	13
	Webpack	Home	uiStartup	1475	1350	1926	96	1506	1657
			load	1284	1171	1713	94	1316	1465
			domContentLoaded	1284	1171	1712	94	1315	1465
			domInteractive	77	53	126	14	83	107
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	15	40	4	21	28
			firstReactRender	40	29	48	3	42	45
			getState	8	5	32	5	9	17
			initialActions	0	0	2	1	1	1
			loadScripts	1266	1155	1685	94	1296	1449
			setupStore	7	5	11	1	7	9

Benchmark value 24 exceeds gate value 18 for chrome browserify home p95 backgroundConnect
Benchmark value 53 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 311 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 40 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 23ms | Sum of p95 exceeds: 252ms
Sum of all benchmark exceeds: 275ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

background: 0 Bytes (0%)
ui: 483 Bytes (0.01%)
common: 264 Bytes (0%)

Jun 13 '25 00:06 metamaskbot

Builds ready [55c7c3b]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1227 ± 63 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1227	1107	1370	63	1269	1338
			load	1066	957	1213	61	1098	1182
			domContentLoaded	1059	953	1206	62	1089	1178
			domInteractive	17	13	32	4	17	29
			firstPaint	698	132	1207	434	1081	1182
			backgroundConnect	8	4	39	6	7	24
			firstReactRender	20	16	36	3	20	25
			getState	15	6	38	8	20	28
			initialActions	0	0	1	0	0	1
			loadScripts	812	709	954	61	846	927
			setupStore	8	5	22	3	8	13
	Webpack	Home	uiStartup	2055	1613	2674	231	2189	2451
			load	1588	1271	2039	180	1694	1902
			domContentLoaded	1583	1267	2027	179	1690	1899
			domInteractive	16	11	81	12	13	47
			firstPaint	153	60	314	55	177	275
			backgroundConnect	20	10	41	6	22	35
			firstReactRender	139	46	367	107	138	344
			getState	14	4	310	30	12	19
			initialActions	3	1	5	1	3	4
			loadScripts	1580	1266	2016	177	1688	1897
			setupStore	49	6	318	94	18	311
Firefox	Browserify	Home	uiStartup	1310	1147	1575	72	1353	1446
			load	1163	1024	1394	70	1201	1316
			domContentLoaded	1163	1024	1393	70	1201	1316
			domInteractive	94	36	185	22	104	135
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	14	104	11	20	47
			firstReactRender	23	21	28	2	23	27
			getState	7	4	9	1	7	8
			initialActions	0	0	1	0	0	1
			loadScripts	1145	1009	1326	68	1187	1293
			setupStore	6	4	24	3	6	11
	Webpack	Home	uiStartup	1520	1366	1783	92	1590	1707
			load	1326	1188	1587	93	1391	1518
			domContentLoaded	1326	1187	1587	93	1391	1518
			domInteractive	80	63	148	13	86	104
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	19	15	28	2	21	23
			firstReactRender	41	27	60	4	43	45
			getState	8	5	30	4	8	10
			initialActions	0	0	1	0	1	1
			loadScripts	1308	1171	1569	94	1374	1503
			setupStore	8	5	31	4	8	9

Benchmark value 1182 exceeds gate value 1180 for chrome browserify home p95 firstPaint
Benchmark value 25 exceeds gate value 18 for chrome browserify home p95 backgroundConnect
Benchmark value 49 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 311 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 41 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 20ms | Sum of p95 exceeds: 255ms
Sum of all benchmark exceeds: 275ms

Bundle size diffs

background: 0 Bytes (0%)
ui: 531 Bytes (0.01%)
common: 0 Bytes (0%)

Jun 13 '25 05:06 metamaskbot

Builds ready [bf70edd]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1203 ± 64 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1203	1092	1375	64	1251	1304
			load	1049	934	1221	63	1093	1144
			domContentLoaded	1043	930	1218	63	1089	1138
			domInteractive	17	13	36	5	16	31
			firstPaint	746	128	1207	404	1069	1119
			backgroundConnect	7	4	25	4	7	20
			firstReactRender	19	13	64	5	20	24
			getState	13	6	34	7	18	27
			initialActions	0	0	1	0	0	1
			loadScripts	799	690	980	63	849	899
			setupStore	7	4	15	2	7	13
	Webpack	Home	uiStartup	2047	1646	2635	224	2159	2450
			load	1608	1256	2153	197	1753	1942
			domContentLoaded	1603	1252	2148	196	1749	1933
			domInteractive	16	12	66	11	13	50
			firstPaint	157	62	372	57	187	285
			backgroundConnect	23	13	336	32	22	34
			firstReactRender	124	46	374	104	96	362
			getState	10	5	26	3	11	16
			initialActions	5	1	302	30	3	3
			loadScripts	1600	1251	2133	195	1747	1922
			setupStore	47	7	318	93	17	314
Firefox	Browserify	Home	uiStartup	1331	1189	1665	81	1376	1474
			load	1185	1043	1541	79	1228	1312
			domContentLoaded	1184	1043	1541	79	1227	1312
			domInteractive	98	36	207	29	111	150
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	21	13	103	11	21	38
			firstReactRender	23	20	30	2	23	29
			getState	7	5	36	3	8	9
			initialActions	0	0	1	0	0	1
			loadScripts	1165	1028	1517	79	1204	1299
			setupStore	5	4	11	1	6	9
	Webpack	Home	uiStartup	1535	1315	1778	112	1617	1738
			load	1344	1148	1591	115	1438	1559
			domContentLoaded	1344	1148	1590	114	1437	1559
			domInteractive	79	43	174	15	85	106
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	15	42	3	21	26
			firstReactRender	41	30	57	4	43	47
			getState	8	5	28	3	8	10
			initialActions	0	0	1	0	1	1
			loadScripts	1326	1134	1573	115	1419	1541
			setupStore	7	5	31	3	7	8

Benchmark value 20 exceeds gate value 18 for chrome browserify home p95 backgroundConnect
Benchmark value 47 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 314 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 41 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 18ms | Sum of p95 exceeds: 251ms
Sum of all benchmark exceeds: 269ms

Bundle size diffs

background: 0 Bytes (0%)
ui: 531 Bytes (0.01%)
common: 0 Bytes (0%)

Jun 13 '25 14:06 metamaskbot

Builds ready [37d5ed6]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1204 ± 69 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1204	1096	1562	69	1245	1302
			load	1047	956	1360	63	1091	1130
			domContentLoaded	1041	935	1347	62	1087	1122
			domInteractive	17	13	35	5	16	30
			firstPaint	683	70	1168	423	1053	1116
			backgroundConnect	7	4	40	4	7	10
			firstReactRender	19	16	45	3	20	22
			getState	12	5	32	7	17	26
			initialActions	0	0	1	0	0	1
			loadScripts	796	701	1090	60	840	883
			setupStore	8	5	17	2	8	13
	Webpack	Home	uiStartup	2045	1603	2484	212	2184	2415
			load	1592	1265	1978	164	1702	1827
			domContentLoaded	1587	1261	1974	164	1698	1819
			domInteractive	16	11	53	10	13	48
			firstPaint	151	59	370	55	181	244
			backgroundConnect	22	13	259	24	23	32
			firstReactRender	135	45	356	106	131	346
			getState	9	4	22	3	11	16
			initialActions	5	1	284	28	3	4
			loadScripts	1584	1260	1964	162	1692	1809
			setupStore	39	7	318	83	16	309
Firefox	Browserify	Home	uiStartup	1340	1178	1613	84	1387	1515
			load	1191	1053	1438	81	1231	1348
			domContentLoaded	1191	1052	1438	81	1231	1348
			domInteractive	97	36	200	26	109	139
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	21	13	97	12	21	28
			firstReactRender	23	20	52	4	24	27
			getState	7	4	12	1	8	10
			initialActions	0	0	1	0	0	1
			loadScripts	1172	1036	1393	78	1214	1336
			setupStore	6	4	38	4	6	10
	Webpack	Home	uiStartup	1468	1307	1742	93	1510	1650
			load	1278	1135	1561	94	1314	1465
			domContentLoaded	1277	1134	1560	94	1314	1464
			domInteractive	77	42	149	16	86	103
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	15	44	4	21	25
			firstReactRender	39	29	47	4	42	46
			getState	9	5	31	5	9	28
			initialActions	0	0	1	0	1	1
			loadScripts	1259	1119	1543	95	1292	1446
			setupStore	8	5	60	6	8	10

Benchmark value 39 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 309 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 40 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 9ms | Sum of p95 exceeds: 244ms
Sum of all benchmark exceeds: 253ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

background: 0 Bytes (0%)
ui: 481 Bytes (0.01%)
common: 1 Bytes (0%)

Jun 13 '25 15:06 metamaskbot

Builds ready [12a4653]

builds: chrome, firefox
builds (beta): chrome, firefox
builds (flask): chrome, firefox
builds (test): chrome, firefox
builds (test-flask): chrome, firefox
build viz: Build System
bundle size: Bundle Size Stats
user-actions-benchmark: User Actions Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- content-script: 0
- offscreen: 0

UI Startup Metrics (1218 ± 63 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1218	1098	1379	63	1261	1326
			load	1053	910	1181	65	1101	1162
			domContentLoaded	1047	899	1176	65	1096	1156
			domInteractive	17	13	37	5	16	32
			firstPaint	699	73	1181	431	1088	1163
			backgroundConnect	6	4	24	2	7	9
			firstReactRender	24	16	155	19	21	38
			getState	13	6	45	8	20	29
			initialActions	0	0	1	0	0	1
			loadScripts	803	665	935	65	856	905
			setupStore	8	5	18	3	9	14
	Webpack	Home	uiStartup	2143	1661	2584	209	2240	2528
			load	1681	1294	2068	184	1802	1961
			domContentLoaded	1675	1290	2062	184	1797	1949
			domInteractive	16	12	66	11	13	51
			firstPaint	169	64	597	90	210	283
			backgroundConnect	21	10	39	6	24	35
			firstReactRender	137	46	368	108	118	355
			getState	11	5	35	5	12	19
			initialActions	11	1	304	48	3	5
			loadScripts	1672	1288	2061	182	1795	1942
			setupStore	48	7	339	95	19	317
Firefox	Browserify	Home	uiStartup	1362	1217	1583	73	1406	1503
			load	1207	1066	1459	73	1246	1365
			domContentLoaded	1206	1066	1459	73	1246	1364
			domInteractive	105	37	312	33	110	158
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	22	14	97	10	22	42
			firstReactRender	24	21	59	4	24	29
			getState	7	4	12	1	8	10
			initialActions	0	0	1	0	0	1
			loadScripts	1186	1052	1446	74	1228	1348
			setupStore	6	4	22	3	6	11
	Webpack	Home	uiStartup	1465	1311	1764	88	1502	1661
			load	1277	1138	1570	90	1319	1466
			domContentLoaded	1277	1138	1570	90	1319	1466
			domInteractive	75	54	128	14	77	108
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	20	16	40	3	21	24
			firstReactRender	39	34	56	3	41	44
			getState	8	4	32	5	8	27
			initialActions	0	0	1	0	1	1
			loadScripts	1259	1124	1549	91	1302	1452
			setupStore	7	5	9	1	7	8

Benchmark value 24 exceeds gate value 23 for chrome browserify home mean firstReactRender
Benchmark value 11 exceeds gate value 7 for chrome webpack home mean initialActions
Benchmark value 48 exceeds gate value 32 for chrome webpack home mean setupStore
Benchmark value 2528 exceeds gate value 2454 for chrome webpack home p95 uiStartup
Benchmark value 317 exceeds gate value 65 for chrome webpack home p95 setupStore
Benchmark value 40 exceeds gate value 38 for firefox webpack home mean firstReactRender
Sum of mean exceeds: 23ms | Sum of p95 exceeds: 326ms
Sum of all benchmark exceeds: 349ms

Bundle size diffs [🚨 Warning! Bundle size has increased!]

background: 0 Bytes (0%)
ui: 3.14 KiB (0.04%)
common: 1.47 KiB (0.02%)

Jun 13 '25 15:06 metamaskbot