feat: add onboarding route to deeplink handler

[sophieqgu]

Description

https://consensyssoftware.atlassian.net/browse/RWDS-861
dded a new deep link route handler for /onboarding that redirects users to the MetaMask support page for importing an existing wallet
To test locally: chrome-extension://hebhblbkkdabgoldnojllkipeoacjioc/home.html#link?u=/onboarding

Changelog

CHANGELOG entry: Added deep link support for /onboarding route

Related issues

Fixes:

Manual testing steps

1. 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.

---

Note

Adds /onboarding deep link that redirects users to the Zendesk support URL for importing existing wallets.

• Deep Links:
  • New Route: Add '/onboarding' in shared/lib/deep-links/routes/onboarding.ts with title deepLink_theOnboardingPage, redirecting to ZENDESK_URLS.IMPORTED_ACCOUNTS_PRIVATE_KEY.
  • Registration: Register onboarding in shared/lib/deep-links/routes/index.ts routes map.
  • Exports: Expose ZENDESK_URLS via shared/lib/deep-links/routes/route.ts for use by routes.

^{Written by Cursor Bugbot for commit faa91d5. This will update automatically on new commits. Configure here.}

[github-actions]

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.

[metamaskbot]

Builds ready [096604a]

• 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, 17, 18
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1259 ± 113 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	1259	1029	1700	113	1318	1449
			load	1047	878	1448	103	1105	1249
			domContentLoaded	1041	873	1439	103	1100	1245
			domInteractive	26	15	107	19	23	87
			firstPaint	536	84	1455	409	1032	1137
			backgroundConnect	222	197	309	15	230	245
			firstReactRender	31	19	133	15	31	60
			getState	36	17	107	16	43	65
			initialActions	1	0	7	1	1	2
			loadScripts	826	671	1210	98	872	1022
			setupStore	11	5	27	4	12	21
			numNetworkReqs	12	5	78	20	5	71
	Browserify	Power User Home	uiStartup	2100	1703	3268	304	2355	2699
			load	1027	898	1749	145	1014	1367
			domContentLoaded	1012	888	1727	144	999	1360
			domInteractive	38	18	178	33	34	127
			firstPaint	513	97	1736	416	952	1360
			backgroundConnect	251	201	735	104	232	549
			firstReactRender	57	41	89	10	61	76
			getState	206	137	770	108	202	362
			initialActions	1	0	6	1	1	2
			loadScripts	805	683	1509	140	797	1154
			setupStore	21	11	49	8	25	39
			numNetworkReqs	160	70	410	76	204	380
	Webpack	Standard Home	uiStartup	824	688	1056	71	856	980
			load	641	566	847	66	676	794
			domContentLoaded	637	562	841	66	671	790
			domInteractive	27	15	110	22	22	93
			firstPaint	227	99	789	156	212	636
			backgroundConnect	11	5	83	9	12	27
			firstReactRender	28	20	83	8	32	39
			getState	27	13	67	11	36	45
			initialActions	1	0	3	1	1	1
			loadScripts	634	560	832	64	669	782
			setupStore	11	7	41	5	12	19
			numNetworkReqs	12	5	77	20	5	73
	Webpack	Power User Home	uiStartup	1646	1293	2548	279	1914	2165
			load	680	585	1183	105	687	935
			domContentLoaded	670	579	1176	106	673	929
			domInteractive	36	18	175	32	31	128
			firstPaint	257	80	1189	185	245	667
			backgroundConnect	72	7	634	164	18	563
			firstReactRender	60	47	83	8	65	76
			getState	174	135	232	19	183	212
			initialActions	1	0	5	1	1	2
			loadScripts	667	577	1167	104	671	920
			setupStore	21	9	61	12	25	50
			numNetworkReqs	169	69	430	84	221	390
Firefox	Browserify	Standard Home	uiStartup	1348	1108	1803	137	1405	1641
			load	1117	952	1491	94	1168	1279
			domContentLoaded	1117	952	1490	94	1167	1279
			domInteractive	72	34	201	39	92	140
			firstPaint	-	-	-	-	-	-
			backgroundConnect	49	22	176	32	60	120
			firstReactRender	23	18	41	4	25	34
			getState	12	6	91	10	11	23
			initialActions	1	0	2	0	2	2
			loadScripts	1087	935	1379	82	1135	1254
			setupStore	15	7	286	28	11	32
			numNetworkReqs	12	5	66	17	6	61
	Browserify	Power User Home	uiStartup	2689	1922	4849	662	2732	4423
			load	1261	973	2785	413	1191	2667
			domContentLoaded	1260	973	2784	412	1191	2659
			domInteractive	125	32	632	122	113	451
			firstPaint	-	-	-	-	-	-
			backgroundConnect	162	24	1270	277	105	1077
			firstReactRender	61	38	142	19	61	108
			getState	276	70	962	194	340	758
			initialActions	2	1	7	1	2	3
			loadScripts	1174	945	2560	251	1161	1599
			setupStore	156	8	1266	204	164	601
			numNetworkReqs	100	57	327	63	79	235
	Webpack	Standard Home	uiStartup	1474	1233	2022	150	1552	1861
			load	1226	1066	1603	102	1302	1386
			domContentLoaded	1225	1066	1602	102	1301	1385
			domInteractive	55	26	136	30	83	108
			firstPaint	-	-	-	-	-	-
			backgroundConnect	45	21	221	32	43	96
			firstReactRender	24	19	53	5	27	34
			getState	13	6	204	21	11	22
			initialActions	2	0	5	1	3	4
			loadScripts	1200	1031	1583	96	1275	1350
			setupStore	13	6	77	11	12	40
			numNetworkReqs	11	5	66	15	7	54
	Webpack	Power User Home	uiStartup	3043	2105	5624	743	3046	4913
			load	1516	1221	3364	434	1531	2848
			domContentLoaded	1516	1221	3364	434	1530	2848
			domInteractive	120	33	548	112	112	450
			firstPaint	-	-	-	-	-	-
			backgroundConnect	150	27	1219	188	144	378
			firstReactRender	67	41	325	34	66	112
			getState	304	71	986	232	379	845
			initialActions	2	1	7	1	2	3
			loadScripts	1456	1194	3178	363	1495	2600
			setupStore	164	6	718	193	213	649
			numNetworkReqs	101	63	246	58	88	237

📊 Page Load Benchmark Results

Current Commit: 096604a | Date: 12/1/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.05s (±38ms) 🟡 | historical mean value: 1.04s ⬆️ (historical data)
• domContentLoaded-> current mean value: 739ms (±36ms) 🟢 | historical mean value: 726ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 79ms (±10ms) 🟢 | historical mean value: 80ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.05s	38ms	1.03s	1.34s	1.08s	1.34s
domContentLoaded	739ms	36ms	717ms	1.01s	763ms	1.01s
firstPaint	79ms	10ms	64ms	156ms	92ms	156ms
firstContentfulPaint	79ms	10ms	64ms	156ms	92ms	156ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

• background: 515.36 KiB (11.03%)
• ui: 705.17 KiB (10%)
• common: 202.66 KiB (2.31%)

[metamaskbot]

Builds ready [faa91d5]

• 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, 17, 18
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1253 ± 119 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	1253	1037	1740	119	1324	1465
			load	1037	874	1475	107	1092	1229
			domContentLoaded	1032	871	1469	106	1088	1219
			domInteractive	26	15	134	21	22	79
			firstPaint	416	83	1259	358	348	1183
			backgroundConnect	219	192	283	15	225	252
			firstReactRender	29	18	72	9	30	51
			getState	35	16	102	17	40	73
			initialActions	1	0	4	1	1	2
			loadScripts	819	669	1251	102	869	1003
			setupStore	11	6	35	4	12	20
			numNetworkReqs	12	5	78	21	5	74
	Browserify	Power User Home	uiStartup	2086	1813	2766	239	2132	2682
			load	1045	923	1459	130	1059	1427
			domContentLoaded	1031	912	1451	130	1045	1421
			domInteractive	40	18	224	37	35	148
			firstPaint	521	84	1475	405	973	1358
			backgroundConnect	252	212	607	83	237	536
			firstReactRender	60	41	113	13	65	89
			getState	189	135	786	66	198	247
			initialActions	1	0	3	1	1	2
			loadScripts	816	698	1231	129	826	1201
			setupStore	20	10	47	8	25	39
			numNetworkReqs	104	67	270	50	99	260
	Webpack	Standard Home	uiStartup	820	696	1074	84	850	1025
			load	642	557	934	75	668	816
			domContentLoaded	637	554	929	75	664	809
			domInteractive	26	15	116	22	22	92
			firstPaint	215	69	697	141	208	602
			backgroundConnect	10	5	36	6	11	25
			firstReactRender	29	20	228	21	31	38
			getState	27	13	77	12	36	49
			initialActions	1	0	3	1	1	2
			loadScripts	634	552	926	74	663	800
			setupStore	10	6	33	4	12	17
			numNetworkReqs	12	5	77	20	5	72
	Webpack	Power User Home	uiStartup	1639	1308	2906	281	1890	2122
			load	682	590	1272	105	691	913
			domContentLoaded	672	580	1267	105	679	905
			domInteractive	37	18	206	34	34	118
			firstPaint	302	101	912	207	337	704
			backgroundConnect	89	8	622	174	23	554
			firstReactRender	62	44	121	12	68	82
			getState	177	125	742	80	178	228
			initialActions	1	0	4	1	1	2
			loadScripts	669	578	1257	104	677	896
			setupStore	20	10	57	11	23	48
			numNetworkReqs	102	65	294	55	98	271
Firefox	Browserify	Standard Home	uiStartup	1299	1084	1901	135	1380	1541
			load	1079	932	1311	87	1148	1233
			domContentLoaded	1079	932	1311	87	1148	1233
			domInteractive	58	30	209	31	81	103
			firstPaint	-	-	-	-	-	-
			backgroundConnect	50	22	210	33	61	113
			firstReactRender	22	18	63	6	22	33
			getState	13	6	164	23	10	22
			initialActions	1	0	3	1	2	2
			loadScripts	1047	916	1263	77	1098	1206
			setupStore	13	6	201	23	11	31
			numNetworkReqs	11	5	65	15	6	62
	Browserify	Power User Home	uiStartup	2727	1988	4617	645	2990	4175
			load	1180	994	2613	240	1165	1574
			domContentLoaded	1180	989	2612	240	1165	1574
			domInteractive	118	33	583	116	107	452
			firstPaint	-	-	-	-	-	-
			backgroundConnect	142	24	1139	188	136	411
			firstReactRender	66	39	368	41	62	133
			getState	328	65	1052	250	526	876
			initialActions	2	0	36	5	2	3
			loadScripts	1133	970	1899	183	1115	1523
			setupStore	147	10	736	167	172	575
			numNetworkReqs	101	59	246	61	79	238
	Webpack	Standard Home	uiStartup	1524	1322	1999	136	1609	1788
			load	1260	1088	1516	95	1321	1431
			domContentLoaded	1259	1087	1516	95	1321	1431
			domInteractive	69	27	185	37	89	138
			firstPaint	-	-	-	-	-	-
			backgroundConnect	48	19	218	31	50	103
			firstReactRender	27	19	65	7	28	39
			getState	14	7	101	14	14	44
			initialActions	2	0	5	1	3	4
			loadScripts	1232	1072	1470	88	1293	1407
			setupStore	12	6	80	10	12	36
			numNetworkReqs	11	5	70	15	7	55
	Webpack	Power User Home	uiStartup	2989	1955	5714	763	3202	4770
			load	1499	1154	3020	437	1591	2736
			domContentLoaded	1498	1153	3020	437	1591	2736
			domInteractive	106	30	463	96	105	403
			firstPaint	-	-	-	-	-	-
			backgroundConnect	130	29	1171	158	146	252
			firstReactRender	63	39	172	23	65	121
			getState	274	85	1274	229	347	775
			initialActions	2	0	33	3	2	3
			loadScripts	1442	1129	2867	385	1529	2572
			setupStore	152	6	731	188	194	619
			numNetworkReqs	101	62	288	54	129	242

📊 Page Load Benchmark Results

Current Commit: faa91d5 | Date: 12/1/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.06s (±38ms) 🟡 | historical mean value: 1.04s ⬆️ (historical data)
• domContentLoaded-> current mean value: 739ms (±35ms) 🟢 | historical mean value: 730ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 80ms (±13ms) 🟢 | historical mean value: 80ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.06s	38ms	1.01s	1.32s	1.10s	1.32s
domContentLoaded	739ms	35ms	701ms	985ms	772ms	985ms
firstPaint	80ms	13ms	64ms	200ms	88ms	200ms
firstContentfulPaint	80ms	13ms	64ms	200ms	88ms	200ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

• background: 515.36 KiB (11.03%)
• ui: 702.88 KiB (9.97%)
• common: 202.75 KiB (2.31%)