feat: Allow queueing of Snap dialogs

[FrederikBolding]

Description

Allow queueing of snap_dialog (the non-legacy type) by adding it to the ApprovalController configuration.

This allows Snaps to queue multiple dialogs in the same way that EVM flows do. This also impacts Solana, Bitcoin and Tron.

Changelog

CHANGELOG entry: Added support for queueing non-EVM confirmations

Related issues

https://consensyssoftware.atlassian.net/browse/WPC-36

Manual testing steps

1. Go to https://metamask.github.io/test-dapp-multichain/latest/
2. Connect with Solana
3. Select "signMessage" below and click "Invoke Method" a couple of times
4. Multiple confirmations should now be queued

---

Note

Allows snap_dialog (non-legacy) confirmations to be queued like other flows.

• Adds DIALOG_APPROVAL_TYPES.default to typesExcludedFromRateLimiting in approval-controller-init.ts
• Imports DIALOG_APPROVAL_TYPES to support the new exclusion

^{Written by Cursor Bugbot for commit 2bcbbe9. This will update automatically on new commits. Configure here.}

[metamaskbotv2]

✨ Files requiring CODEOWNER review ✨

✅ @MetaMask/confirmations (1 files, +4 -0)

• 📁 app/
  • 📁 scripts/
    • 📁 controller-init/
      • 📁 confirmations/
        • 📄 approval-controller-init.ts +4 -0

[metamaskbotv2]

Builds ready [2bcbbe9]

• 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, 10
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1403 ± 119 ms)

Platform	BuildType	Page	Metric	Test Title (ms)	Persona (ms)	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Standard Home	0	-	-	-	-	-	-	-	-
			1	-	-	-	-	-	-	-	-
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			17	-	-	-	-	-	-	-	-
			18	-	-	-	-	-	-	-	-
			uiStartup	-	-	1403	1152	1719	119	1479	1620
			load	-	-	1177	962	1444	113	1253	1387
			domContentLoaded	-	-	1170	956	1438	112	1245	1372
			domInteractive	-	-	29	17	118	19	25	83
			firstPaint	-	-	161	72	1174	124	215	305
			backgroundConnect	-	-	253	230	317	16	257	288
			firstReactRender	-	-	21	12	55	7	24	35
			initialActions	-	-	1	0	7	1	1	4
			loadScripts	-	-	934	724	1212	113	1008	1139
			setupStore	-	-	16	7	60	8	19	31
			numNetworkReqs	-	-	21	15	73	16	15	69
			19	-	-	-	-	-	-	-	-
	Browserify	Power User Home	0	-	-	-	-	-	-	-	-
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			18	-	-	-	-	-	-	-	-
			uiStartup	-	-	2568	1504	7740	950	2688	4420
			load	-	-	1191	998	1813	147	1276	1453
			domContentLoaded	-	-	1170	981	1802	143	1249	1398
			domInteractive	-	-	36	19	190	25	36	104
			firstPaint	-	-	211	77	1688	205	246	340
			backgroundConnect	-	-	551	291	3143	429	636	1370
			firstReactRender	-	-	25	16	68	8	28	40
			initialActions	-	-	1	0	4	1	1	3
			loadScripts	-	-	923	750	1527	130	995	1147
			setupStore	-	-	15	5	62	8	19	29
			numNetworkReqs	-	-	115	55	233	44	139	206
			19	-	-	-	-	-	-	-	-
	Webpack	Standard Home	0	-	-	-	-	-	-	-	-
			1	-	-	-	-	-	-	-	-
2			-	-	-	-	-	-	-	-
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15			-	-	-	-	-	-	-	-
16			-	-	-	-	-	-	-	-
17			-	-	-	-	-	-	-	-
18			-	-	-	-	-	-	-	-
uiStartup			-	-	847	685	1194	106	915	1056
load			-	-	708	600	1015	94	783	917
domContentLoaded			-	-	703	596	1007	94	777	909
domInteractive			-	-	25	15	90	18	23	81
firstPaint			-	-	108	62	324	55	140	215
backgroundConnect			-	-	40	18	201	30	43	116
firstReactRender			-	-	16	10	48	7	18	32
initialActions			-	-	1	0	4	1	1	2
loadScripts			-	-	700	594	1005	93	770	907
setupStore			-	-	12	6	32	5	12	22
numNetworkReqs			-	-	22	15	88	18	15	74
19			-	-	-	-	-	-	-	-
Webpack	Power User Home	0	-	-	-	-	-	-	-	-
		1	-	-	-	-	-	-	-	-
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		17	-	-	-	-	-	-	-	-
		18	-	-	-	-	-	-	-	-
		uiStartup	-	-	1289	855	2166	237	1468	1664
		load	-	-	724	627	1064	106	739	1007
		domContentLoaded	-	-	713	621	1056	107	729	999
		domInteractive	-	-	37	19	187	27	36	98
		firstPaint	-	-	157	67	1000	123	162	442
		backgroundConnect	-	-	173	133	590	88	159	443
		firstReactRender	-	-	22	17	32	3	23	28
		initialActions	-	-	1	0	2	1	1	1
		loadScripts	-	-	710	619	1048	105	727	990
		setupStore	-	-	12	5	34	4	14	17
		numNetworkReqs	-	-	128	47	300	55	160	251
		19	-	-	-	-	-	-	-	-
Firefox	Browserify	Standard Home	0	-	-	-	-	-	-	-	-
			1	-	-	-	-	-	-	-	-
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			uiStartup	-	-	1421	1101	1898	184	1530	1819
			load	-	-	1142	950	1580	126	1225	1357
			domContentLoaded	-	-	1141	949	1580	126	1224	1356
			domInteractive	-	-	77	33	221	49	117	194
			firstPaint	-	-	-	-	-	-	-	-
			backgroundConnect	-	-	61	23	201	44	80	164
			firstReactRender	-	-	12	10	40	4	12	16
			initialActions	-	-	1	0	2	1	2	2
			loadScripts	-	-	1107	933	1408	106	1179	1275
			setupStore	-	-	12	5	119	13	10	35
			numNetworkReqs	-	-	23	12	85	18	19	76
			19	-	-	-	-	-	-	-	-
	Browserify	Power User Home	0	-	-	-	-	-	-	-	-
			1	-	-	-	-	-	-	-	-
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			uiStartup	-	-	2767	2064	7029	614	2904	3494
			load	-	-	1305	1101	2410	209	1345	1726
			domContentLoaded	-	-	1305	1101	2410	209	1345	1725
			domInteractive	-	-	142	53	837	114	146	351
			firstPaint	-	-	-	-	-	-	-	-
			backgroundConnect	-	-	333	130	1482	259	316	940
			firstReactRender	-	-	22	14	72	7	24	31
			initialActions	-	-	2	0	3	1	2	3
			loadScripts	-	-	1256	1069	2372	173	1302	1543
			setupStore	-	-	197	20	1056	226	300	670
			numNetworkReqs	-	-	88	37	285	44	95	200
			19	-	-	-	-	-	-	-	-
	Webpack	Standard Home	0	-	-	-	-	-	-	-	-
			1	-	-	-	-	-	-	-	-
2			-	-	-	-	-	-	-	-
3			-	-	-	-	-	-	-	-
4			-	-	-	-	-	-	-	-
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uiStartup			-	-	1693	1333	2547	204	1798	2130
load			-	-	1439	1215	2039	129	1512	1684
domContentLoaded			-	-	1439	1215	2039	130	1512	1684
domInteractive			-	-	91	31	276	46	111	161
firstPaint			-	-	-	-	-	-	-	-
backgroundConnect			-	-	78	26	229	50	117	178
firstReactRender			-	-	15	11	58	5	15	19
initialActions			-	-	1	0	3	1	2	2
loadScripts			-	-	1398	1198	1919	108	1456	1590
setupStore			-	-	19	4	178	34	11	130
numNetworkReqs			-	-	23	12	89	18	18	79
19			-	-	-	-	-	-	-	-
Webpack	Power User Home	0	-	-	-	-	-	-	-	-
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		uiStartup	-	-	2967	2241	4949	493	3231	3933
		load	-	-	1574	1259	3469	348	1675	2344
		domContentLoaded	-	-	1573	1259	3469	348	1674	2343
		domInteractive	-	-	134	32	400	83	170	347
		firstPaint	-	-	-	-	-	-	-	-
		backgroundConnect	-	-	427	120	1647	324	611	1065
		firstReactRender	-	-	21	15	58	6	24	30
		initialActions	-	-	1	0	3	1	2	2
		loadScripts	-	-	1527	1240	3416	339	1634	2318
		setupStore	-	-	156	10	796	192	211	610
		numNetworkReqs	-	-	89	38	270	48	90	206
		19	-	-	-	-	-	-	-	-

📊 Page Load Benchmark Results

Current Commit: 2bcbbe9 | Date: 1/28/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.04s (±38ms) 🟡 | historical mean value: 1.03s ⬆️ (historical data)
• domContentLoaded-> current mean value: 724ms (±36ms) 🟢 | historical mean value: 717ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 76ms (±10ms) 🟢 | historical mean value: 76ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	38ms	1.01s	1.33s	1.06s	1.33s
domContentLoaded	724ms	36ms	702ms	993ms	746ms	993ms
firstPaint	76ms	10ms	64ms	164ms	88ms	164ms
firstContentfulPaint	76ms	10ms	64ms	164ms	88ms	164ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

• background: 160 Bytes (0%)
• ui: 2.15 KiB (0.03%)
• common: 581 Bytes (0.01%)