fix: use maxConcurrency=1 for Snap account providers cp-13.11.0

[ccharly]

Description

It seems that having concurrent calls to keyring_createAccount cause some synchronization issues between Snap's accounts and MetaMask accounts. We're not sure of the real root cause yet for this, but preventing concurrent calls seems to mitigate (or even completely prevent) this kind of issues.

Changelog

CHANGELOG entry: null

Related issues

Mitigates (partially): #37228

Manual testing steps

Nothing special to tests for this.

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.

---

Note

Adds a shared Snap provider config with maxConcurrency=1, applies it to BTC/TRX providers, registers it for SOL, and updates tests accordingly.

• Multichain account service init (app/scripts/controller-init/multichain/multichain-account-service-init.ts):
  • Introduces snapAccountProviderConfig with maxConcurrency: 1 and tuned timeouts.
  • Passes config to BtcAccountProvider and TrxAccountProvider via AccountProviderWrapper.
  • Sets providerConfigs[{SOL_ACCOUNT_PROVIDER_NAME}] to snapAccountProviderConfig when creating MultichainAccountService.
• Tests (app/scripts/controller-init/multichain/multichain-account-service-init.test.ts):
  • Expects providerConfigs in MultichainAccountService constructor args.

^{Written by Cursor Bugbot for commit a5da3f4. This will update automatically on new commits. Configure here.}

[github-actions]

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[metamaskbot]

Builds ready [1b6f76a]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• 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, 15
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1245 ± 94 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Standard Home	uiStartup	1245	1083	1484	94	1301	1426
			load	1060	900	1280	92	1121	1225
			domContentLoaded	1054	897	1274	91	1115	1218
			domInteractive	25	14	116	21	20	84
			firstPaint	483	74	1293	402	973	1204
			backgroundConnect	218	191	256	11	223	238
			firstReactRender	28	18	59	9	31	46
			getState	34	18	75	12	40	61
			initialActions	1	0	7	1	1	3
			loadScripts	843	684	1075	92	914	1008
			setupStore	11	5	32	4	12	20
			numNetworkReqs	12	5	77	20	5	73
	Browserify	Power User Home	uiStartup	1866	1555	2422	191	1980	2295
			load	994	876	1572	154	977	1435
			domContentLoaded	981	869	1565	154	962	1427
			domInteractive	36	15	236	40	29	150
			firstPaint	505	82	1469	364	916	1001
			backgroundConnect	220	199	255	11	226	240
			firstReactRender	80	43	128	17	89	120
			getState	170	130	266	28	186	236
			initialActions	1	0	6	1	1	2
			loadScripts	775	670	1358	154	758	1223
			setupStore	19	10	98	11	23	40
			numNetworkReqs	134	68	313	57	177	292
	Webpack	Standard Home	uiStartup	820	734	1115	75	846	978
			load	617	568	800	58	628	783
			domContentLoaded	612	563	794	58	622	775
			domInteractive	24	15	95	19	21	82
			firstPaint	242	97	810	164	222	607
			backgroundConnect	11	6	36	7	14	29
			firstReactRender	29	21	74	7	33	38
			getState	29	14	67	10	36	47
			initialActions	1	0	4	1	1	3
			loadScripts	609	561	785	56	620	764
			setupStore	12	4	31	5	14	22
			numNetworkReqs	12	5	77	20	5	69
	Webpack	Power User Home	uiStartup	1380	1048	1878	181	1458	1765
			load	629	551	999	106	618	927
			domContentLoaded	619	542	993	105	607	916
			domInteractive	32	16	162	30	29	118
			firstPaint	332	99	997	221	568	732
			backgroundConnect	14	6	65	8	15	31
			firstReactRender	77	48	117	12	83	100
			getState	155	133	252	21	159	203
			initialActions	1	0	2	0	1	1
			loadScripts	617	540	985	103	605	907
			setupStore	18	6	46	10	19	43
			numNetworkReqs	145	64	327	57	188	286
Firefox	Browserify	Standard Home	uiStartup	1201	1062	1602	105	1247	1417
			load	1015	907	1192	74	1062	1143
			domContentLoaded	1013	903	1192	74	1061	1142
			domInteractive	56	30	191	35	77	113
			firstPaint	-	-	-	-	-	-
			backgroundConnect	34	21	153	17	35	63
			firstReactRender	20	17	51	5	20	31
			getState	11	5	153	15	9	18
			initialActions	1	0	3	1	1	2
			loadScripts	993	892	1173	69	1040	1118
			setupStore	13	5	163	22	9	30
			numNetworkReqs	11	5	65	15	7	53
	Browserify	Power User Home	uiStartup	2505	1882	3623	331	2703	3293
			load	1138	907	1711	168	1151	1581
			domContentLoaded	1137	906	1711	168	1150	1580
			domInteractive	127	32	627	136	105	494
			firstPaint	-	-	-	-	-	-
			backgroundConnect	139	32	838	159	128	562
			firstReactRender	85	38	174	23	98	127
			getState	269	80	914	215	413	749
			initialActions	2	0	8	2	2	6
			loadScripts	1106	888	1659	167	1127	1562
			setupStore	151	6	760	193	161	660
			numNetworkReqs	91	61	204	44	80	196
	Webpack	Standard Home	uiStartup	1465	1313	1976	125	1506	1742
			load	1243	1094	1454	92	1294	1426
			domContentLoaded	1243	1094	1454	92	1293	1426
			domInteractive	64	28	179	36	82	132
			firstPaint	-	-	-	-	-	-
			backgroundConnect	44	21	171	24	45	94
			firstReactRender	29	21	70	8	31	40
			getState	15	6	118	19	12	47
			initialActions	1	0	3	0	1	2
			loadScripts	1217	1075	1431	86	1258	1380
			setupStore	16	6	185	26	11	70
			numNetworkReqs	12	5	68	17	6	62
	Webpack	Power User Home	uiStartup	2746	2131	3425	287	2988	3236
			load	1376	1147	1820	156	1392	1719
			domContentLoaded	1376	1147	1820	156	1392	1719
			domInteractive	113	30	646	111	107	401
			firstPaint	-	-	-	-	-	-
			backgroundConnect	134	36	549	116	137	462
			firstReactRender	85	42	218	26	92	129
			getState	309	87	878	229	498	777
			initialActions	4	1	58	9	3	8
			loadScripts	1342	1128	1797	149	1357	1641
			setupStore	96	9	584	127	94	494
			numNetworkReqs	91	59	216	42	76	186

📊 Page Load Benchmark Results

Current Commit: 1b6f76a | Date: 11/21/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.04s (±38ms) 🟡 | historical mean value: 1.04s ⬆️ (historical data)
• domContentLoaded-> current mean value: 726ms (±36ms) 🟢 | historical mean value: 727ms ⬇️ (historical data)
• firstContentfulPaint-> current mean value: 76ms (±11ms) 🟢 | historical mean value: 79ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	38ms	1.02s	1.32s	1.07s	1.32s
domContentLoaded	726ms	36ms	707ms	998ms	756ms	998ms
firstPaint	76ms	11ms	60ms	168ms	84ms	168ms
firstContentfulPaint	76ms	11ms	60ms	168ms	84ms	168ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

• background: 213 Bytes (0%)
• ui: 0 Bytes (0%)
• common: 20 Bytes (0%)

[metamaskbot]

Builds ready [a5da3f4]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• 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, 15
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1207 ± 98 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Standard Home	uiStartup	1207	1058	1595	98	1269	1366
			load	1025	883	1307	92	1097	1179
			domContentLoaded	1019	881	1300	91	1086	1173
			domInteractive	23	13	96	17	18	73
			firstPaint	513	90	1313	411	1007	1166
			backgroundConnect	210	190	269	12	215	235
			firstReactRender	30	19	51	8	37	46
			getState	34	16	75	11	42	57
			initialActions	1	0	5	1	1	2
			loadScripts	816	675	1089	91	880	975
			setupStore	12	6	33	5	13	25
			numNetworkReqs	12	5	77	21	5	75
	Browserify	Power User Home	uiStartup	1862	1595	2984	219	1946	2347
			load	984	872	1904	165	963	1413
			domContentLoaded	971	867	1885	164	945	1404
			domInteractive	33	15	201	35	27	140
			firstPaint	580	99	1893	426	945	1413
			backgroundConnect	220	198	277	11	227	238
			firstReactRender	82	43	137	19	91	120
			getState	170	128	287	32	181	241
			initialActions	1	0	3	1	1	2
			loadScripts	766	672	1673	162	741	1193
			setupStore	20	9	66	11	23	42
			numNetworkReqs	135	66	320	56	178	298
	Webpack	Standard Home	uiStartup	803	719	1005	69	842	959
			load	602	541	807	59	607	789
			domContentLoaded	597	536	798	58	603	783
			domInteractive	23	13	110	17	21	67
			firstPaint	266	105	806	186	227	636
			backgroundConnect	11	6	33	6	12	24
			firstReactRender	29	20	42	6	34	38
			getState	29	13	68	11	35	49
			initialActions	1	0	6	1	1	2
			loadScripts	594	534	787	56	601	774
			setupStore	12	5	32	5	14	22
			numNetworkReqs	12	5	75	19	5	70
	Webpack	Power User Home	uiStartup	1433	1196	2153	188	1548	1777
			load	666	579	1324	121	666	989
			domContentLoaded	656	572	1314	121	653	984
			domInteractive	35	17	203	34	32	134
			firstPaint	271	82	1071	193	258	655
			backgroundConnect	14	8	47	6	17	23
			firstReactRender	79	51	119	13	86	100
			getState	149	125	229	19	153	192
			initialActions	1	0	3	1	1	2
			loadScripts	654	570	1302	119	651	975
			setupStore	21	9	52	12	25	48
			numNetworkReqs	143	67	347	59	187	284
Firefox	Browserify	Standard Home	uiStartup	1194	1025	1641	121	1255	1432
			load	1009	880	1342	85	1077	1161
			domContentLoaded	1008	876	1342	86	1077	1161
			domInteractive	56	31	210	36	75	148
			firstPaint	-	-	-	-	-	-
			backgroundConnect	39	20	210	30	39	107
			firstReactRender	21	17	47	5	21	33
			getState	11	5	83	13	9	46
			initialActions	1	0	2	0	1	2
			loadScripts	986	868	1187	76	1050	1135
			setupStore	10	5	62	7	9	22
			numNetworkReqs	11	5	68	15	6	55
	Browserify	Power User Home	uiStartup	2425	1845	3342	294	2557	3013
			load	1116	929	1649	154	1115	1517
			domContentLoaded	1115	923	1649	155	1115	1516
			domInteractive	124	29	535	113	115	415
			firstPaint	-	-	-	-	-	-
			backgroundConnect	108	28	657	127	94	496
			firstReactRender	78	48	124	20	89	121
			getState	232	73	816	201	224	725
			initialActions	3	0	23	3	3	7
			loadScripts	1090	909	1629	154	1085	1481
			setupStore	128	5	679	160	135	551
			numNetworkReqs	92	62	206	40	79	191
	Webpack	Standard Home	uiStartup	1504	1321	1922	128	1543	1792
			load	1278	1119	1627	105	1330	1492
			domContentLoaded	1277	1119	1627	105	1329	1492
			domInteractive	73	29	231	41	83	183
			firstPaint	-	-	-	-	-	-
			backgroundConnect	43	22	145	25	44	119
			firstReactRender	28	22	43	5	31	37
			getState	11	6	49	7	12	22
			initialActions	1	0	3	1	2	2
			loadScripts	1252	1104	1594	99	1309	1432
			setupStore	12	6	67	11	11	46
			numNetworkReqs	12	5	71	17	6	65
	Webpack	Power User Home	uiStartup	2662	2207	3634	269	2792	3174
			load	1346	1110	2000	187	1400	1712
			domContentLoaded	1345	1110	2000	187	1399	1712
			domInteractive	108	30	527	115	95	447
			firstPaint	-	-	-	-	-	-
			backgroundConnect	120	25	631	117	121	448
			firstReactRender	79	40	158	19	88	114
			getState	260	64	826	224	371	816
			initialActions	3	1	36	5	3	7
			loadScripts	1309	1093	1980	182	1360	1673
			setupStore	127	6	771	185	86	606
			numNetworkReqs	90	53	191	35	125	159

📊 Page Load Benchmark Results

Current Commit: a5da3f4 | Date: 11/21/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.06s (±45ms) 🟡 | historical mean value: 1.04s ⬆️ (historical data)
• domContentLoaded-> current mean value: 739ms (±42ms) 🟢 | historical mean value: 727ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 78ms (±11ms) 🟢 | historical mean value: 79ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.06s	45ms	1.03s	1.37s	1.08s	1.37s
domContentLoaded	739ms	42ms	717ms	1.03s	756ms	1.03s
firstPaint	78ms	11ms	60ms	168ms	88ms	168ms
firstContentfulPaint	78ms	11ms	60ms	168ms	88ms	168ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

• background: 213 Bytes (0%)
• ui: 865 Bytes (0.01%)
• common: 20 Bytes (0%)