feat: add megaeth mainnet #38369

wantedsystem · 2025-11-27T18:01:50Z

Description

Adds MegaETH Mainnet to popular networks.

MegaETH Mainnet

Added to popular networks list (FEATURED_RPCS)

Changelog

CHANGELOG entry: Added MegaETH Mainnet to FEATURED_RPCS

Related issues

Fixes:

Manual testing steps

Select a network
Go to Additonnal Networks
Click on MegaETH
Since the MegaETH RPC and explorer aren’t live yet (they will be on day one), you won’t be able to test sending transactions

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 MegaETH mainnet (0x10e6) to featured networks with RPC and explorer, and updates names, constants, tests, and UI snapshots.

Networks/Constants:
- Add MEGAETH default block explorer URLs and map entries in shared/constants/common.ts.
- Add FEATURED_RPCS entry for CHAIN_IDS.MEGAETH_MAINNET (https://mainnet.megaeth.com/rpc) with explorer https://explorer.megaeth.com/ in shared/constants/network.ts.
- Update display name to MEGAETH_MAINNET_DISPLAY_NAME = 'MegaETH'.
Tests & UI:
- Update shared/constants/network.test.ts to expect MegaETH in FEATURED_RPCS chain IDs.
- Refresh snapshots to include MegaETH in the popular networks list (ui/components/multichain/network-list-menu/*.snap).

^{Written by Cursor Bugbot for commit 76b6e1b. This will update automatically on new commits. Configure here.}

github-actions · 2025-11-27T18:02:00Z

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 · 2025-11-27T18:02:43Z

✨ Files requiring CODEOWNER review ✨

👨‍🔧 @MetaMask/core-extension-ux (1 files, +76 -0)

📁 ui/
- 📁 components/
  - 📁 multichain/
    - 📁 network-list-menu/
      - 📁 __snapshots__/
        
        📄 network-list-menu.test.tsx.snap +76 -0

ui/pages/confirmations/hooks/useEIP7702Networks.test.ts

test/e2e/mock-response-data/chain-id-network-chains.json

shared/constants/common.ts

app/scripts/migrations/184.ts

metamaskbot · 2025-11-27T19:04:45Z

Builds ready [a7b889d]

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 (1286 ± 138 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	1286	1044	1768	138	1364	1554
			load	1035	856	1357	115	1096	1266
			domContentLoaded	1029	850	1348	113	1089	1256
			domInteractive	27	15	122	23	22	96
			firstPaint	531	82	1280	409	1014	1216
			backgroundConnect	213	196	247	11	220	235
			firstReactRender	37	23	70	9	40	59
			getState	61	17	187	30	71	131
			initialActions	1	0	12	2	1	5
			loadScripts	822	654	1128	111	885	1025
			setupStore	14	6	43	6	18	26
			numNetworkReqs	41	28	148	34	30	143
	Browserify	Power User Home	uiStartup	2085	1721	3343	283	2282	2610
			load	1009	887	1646	144	1010	1401
			domContentLoaded	996	879	1634	145	992	1394
			domInteractive	37	17	146	33	34	141
			firstPaint	522	112	1646	381	934	1203
			backgroundConnect	260	201	751	124	223	625
			firstReactRender	58	39	111	14	62	90
			getState	197	130	659	97	196	276
			initialActions	1	0	5	1	1	2
			loadScripts	791	682	1391	143	792	1185
			setupStore	20	11	50	8	24	41
			numNetworkReqs	151	68	388	72	198	322
	Webpack	Standard Home	uiStartup	884	736	1407	113	925	1130
			load	649	573	1025	83	666	847
			domContentLoaded	644	569	1019	83	660	841
			domInteractive	29	16	145	26	23	96
			firstPaint	239	75	847	166	222	644
			backgroundConnect	11	5	47	7	12	30
			firstReactRender	40	23	196	26	39	90
			getState	52	14	351	37	63	96
			initialActions	1	0	4	1	1	3
			loadScripts	641	567	1011	81	658	830
			setupStore	13	5	43	7	15	27
			numNetworkReqs	41	28	145	33	31	140
	Webpack	Power User Home	uiStartup	1591	1235	2543	251	1676	2103
			load	674	576	1134	96	678	891
			domContentLoaded	664	571	1130	97	669	887
			domInteractive	36	17	172	32	32	131
			firstPaint	300	77	998	205	373	685
			backgroundConnect	63	7	583	136	20	540
			firstReactRender	59	45	93	9	63	74
			getState	171	130	641	52	178	209
			initialActions	1	0	4	1	1	2
			loadScripts	662	569	1120	95	666	878
			setupStore	22	8	58	12	28	48
			numNetworkReqs	141	65	401	69	146	329
Firefox	Browserify	Standard Home	uiStartup	1405	1137	1910	170	1518	1712
			load	1080	927	1429	107	1142	1302
			domContentLoaded	1079	927	1429	107	1142	1302
			domInteractive	61	31	276	38	82	122
			firstPaint	-	-	-	-	-	-
			backgroundConnect	65	23	326	48	72	192
			firstReactRender	27	18	50	7	31	44
			getState	25	9	204	21	26	46
			initialActions	1	0	5	1	2	3
			loadScripts	1048	909	1402	97	1109	1260
			setupStore	24	7	129	18	29	60
			numNetworkReqs	39	28	123	25	32	116
	Browserify	Power User Home	uiStartup	2648	2000	4677	539	2811	4068
			load	1169	980	2497	242	1148	1556
			domContentLoaded	1169	979	2497	242	1148	1556
			domInteractive	131	35	551	124	115	491
			firstPaint	-	-	-	-	-	-
			backgroundConnect	129	26	1208	146	127	399
			firstReactRender	62	37	173	21	66	104
			getState	311	28	1234	247	439	891
			initialActions	3	1	60	8	2	3
			loadScripts	1123	958	2361	193	1112	1497
			setupStore	147	12	747	165	174	594
			numNetworkReqs	102	62	322	65	77	240
	Webpack	Standard Home	uiStartup	1668	1371	2406	206	1731	2120
			load	1287	1075	1610	111	1334	1542
			domContentLoaded	1286	1075	1610	111	1333	1541
			domInteractive	59	27	166	31	83	111
			firstPaint	-	-	-	-	-	-
			backgroundConnect	73	21	371	51	78	155
			firstReactRender	32	20	72	8	35	48
			getState	30	12	194	30	26	83
			initialActions	2	0	8	1	2	2
			loadScripts	1254	1061	1538	98	1306	1467
			setupStore	32	10	248	45	24	141
			numNetworkReqs	41	28	131	28	37	125
	Webpack	Power User Home	uiStartup	2994	2150	4948	708	3024	4551
			load	1466	1133	2833	411	1489	2607
			domContentLoaded	1465	1132	2833	411	1489	2607
			domInteractive	111	29	509	111	99	447
			firstPaint	-	-	-	-	-	-
			backgroundConnect	138	32	1304	175	145	330
			firstReactRender	66	41	299	35	66	120
			getState	299	82	1018	248	396	895
			initialActions	2	0	8	1	2	3
			loadScripts	1398	1113	2735	345	1380	2470
			setupStore	149	6	1055	204	147	631
			numNetworkReqs	101	61	253	60	81	241

📊 Page Load Benchmark Results

Current Commit: a7b889d | Date: 11/27/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.04s (±40ms) 🟡 | historical mean value: 1.04s ⬇️ (historical data)
domContentLoaded-> current mean value: 722ms (±37ms) 🟢 | historical mean value: 721ms ⬆️ (historical data)
firstContentfulPaint-> current mean value: 76ms (±10ms) 🟢 | historical mean value: 80ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	40ms	1.01s	1.32s	1.06s	1.32s
domContentLoaded	722ms	37ms	699ms	982ms	733ms	982ms
firstPaint	76ms	10ms	56ms	160ms	88ms	160ms
firstContentfulPaint	76ms	10ms	56ms	160ms	88ms	160ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 1.43 KiB (0.03%)
ui: -2 Bytes (0%)
common: 377 Bytes (0%)

metamaskbot · 2025-11-27T21:29:57Z

Builds ready [712cd24]

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 (1254 ± 97 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	1254	1061	1521	97	1322	1426
			load	1052	878	1279	89	1106	1220
			domContentLoaded	1046	873	1273	88	1103	1214
			domInteractive	27	15	107	21	22	89
			firstPaint	533	80	1283	409	1019	1210
			backgroundConnect	223	195	258	14	232	251
			firstReactRender	32	20	64	11	40	55
			getState	35	16	96	14	40	61
			initialActions	1	0	6	1	1	2
			loadScripts	830	676	1029	86	877	1005
			setupStore	12	6	40	5	13	23
			numNetworkReqs	12	5	76	20	5	73
	Browserify	Power User Home	uiStartup	2048	1678	2953	253	2181	2614
			load	1000	883	1639	140	996	1361
			domContentLoaded	986	875	1628	140	973	1355
			domInteractive	34	17	169	31	30	119
			firstPaint	536	101	1419	394	938	1319
			backgroundConnect	260	201	606	106	230	544
			firstReactRender	58	37	138	15	60	88
			getState	195	141	671	86	197	271
			initialActions	1	0	6	1	1	2
			loadScripts	782	671	1408	139	765	1160
			setupStore	19	9	50	8	22	34
			numNetworkReqs	149	68	399	74	198	310
	Webpack	Standard Home	uiStartup	807	699	1016	75	831	982
			load	625	564	853	66	640	786
			domContentLoaded	621	559	843	66	636	780
			domInteractive	25	15	99	21	21	87
			firstPaint	229	85	844	185	187	781
			backgroundConnect	10	5	80	8	9	26
			firstReactRender	27	19	51	7	31	39
			getState	26	14	67	10	32	45
			initialActions	1	0	4	1	1	1
			loadScripts	618	557	834	64	634	771
			setupStore	10	6	37	5	12	22
			numNetworkReqs	12	5	76	20	5	71
	Webpack	Power User Home	uiStartup	1642	1242	2243	253	1864	2079
			load	675	579	1019	90	692	906
			domContentLoaded	665	573	1012	91	675	901
			domInteractive	35	18	138	27	35	115
			firstPaint	265	91	1027	188	257	754
			backgroundConnect	80	8	645	165	19	545
			firstReactRender	61	42	95	11	66	84
			getState	179	141	664	71	177	218
			initialActions	1	0	4	1	1	2
			loadScripts	662	571	1004	89	673	890
			setupStore	20	8	54	10	23	44
			numNetworkReqs	162	71	389	75	209	383
Firefox	Browserify	Standard Home	uiStartup	1240	1030	1770	139	1311	1536
			load	1031	884	1430	99	1087	1228
			domContentLoaded	1030	879	1430	99	1087	1228
			domInteractive	56	30	166	29	83	115
			firstPaint	-	-	-	-	-	-
			backgroundConnect	40	21	162	23	42	94
			firstReactRender	23	17	68	7	22	38
			getState	11	6	81	10	10	20
			initialActions	1	0	3	1	1	3
			loadScripts	1007	867	1366	93	1059	1178
			setupStore	12	6	174	17	9	29
			numNetworkReqs	11	5	67	15	6	52
	Browserify	Power User Home	uiStartup	2574	1969	4400	485	2674	3820
			load	1187	966	2442	227	1165	1575
			domContentLoaded	1187	966	2442	227	1165	1575
			domInteractive	121	35	540	103	121	402
			firstPaint	-	-	-	-	-	-
			backgroundConnect	108	26	503	78	125	240
			firstReactRender	60	36	161	22	63	109
			getState	252	50	920	187	294	726
			initialActions	3	1	25	3	3	7
			loadScripts	1144	951	2325	211	1131	1547
			setupStore	169	10	929	194	204	612
			numNetworkReqs	103	64	326	61	80	241
	Webpack	Standard Home	uiStartup	1512	1290	1916	133	1588	1755
			load	1257	1072	1560	99	1330	1420
			domContentLoaded	1257	1071	1560	100	1329	1420
			domInteractive	63	27	176	33	89	119
			firstPaint	-	-	-	-	-	-
			backgroundConnect	49	18	203	29	51	112
			firstReactRender	27	20	70	7	28	40
			getState	13	6	172	17	12	22
			initialActions	1	0	3	1	2	2
			loadScripts	1228	1056	1523	90	1300	1381
			setupStore	12	6	49	9	11	41
			numNetworkReqs	11	5	67	15	7	61
	Webpack	Power User Home	uiStartup	2850	2050	4417	651	3086	4385
			load	1390	1131	2596	321	1470	2368
			domContentLoaded	1390	1131	2596	321	1470	2368
			domInteractive	110	29	493	114	91	470
			firstPaint	-	-	-	-	-	-
			backgroundConnect	113	33	1021	141	123	226
			firstReactRender	58	40	129	17	60	110
			getState	283	77	1698	269	375	825
			initialActions	3	1	39	4	2	7
			loadScripts	1332	1101	2428	258	1427	1787
			setupStore	130	8	1007	182	111	615
			numNetworkReqs	101	60	254	57	82	243

📊 Page Load Benchmark Results

Current Commit: 712cd24 | Date: 11/27/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.02s (±38ms) 🟡 | historical mean value: 1.04s ⬇️ (historical data)
domContentLoaded-> current mean value: 713ms (±36ms) 🟢 | historical mean value: 724ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 76ms (±13ms) 🟢 | historical mean value: 78ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.02s	38ms	1.00s	1.31s	1.05s	1.31s
domContentLoaded	713ms	36ms	693ms	979ms	741ms	979ms
firstPaint	76ms	13ms	60ms	192ms	88ms	192ms
firstContentfulPaint	76ms	13ms	60ms	192ms	88ms	192ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 3.07 KiB (0.07%)
ui: 564 Bytes (0.01%)
common: 2.13 KiB (0.02%)

metamaskbot · 2025-11-28T00:15:16Z

Builds ready [279a9d4]

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 (1206 ± 125 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	1206	1001	1650	125	1275	1448
			load	1018	844	1307	106	1068	1245
			domContentLoaded	1011	840	1293	104	1064	1235
			domInteractive	27	15	135	23	22	90
			firstPaint	689	74	1314	412	1031	1229
			backgroundConnect	204	187	267	12	212	226
			firstReactRender	29	18	63	9	37	45
			getState	35	16	168	19	40	62
			initialActions	1	0	4	1	1	3
			loadScripts	814	644	1068	100	850	1025
			setupStore	11	7	30	4	12	19
			numNetworkReqs	12	5	77	20	5	73
	Browserify	Power User Home	uiStartup	2055	1676	2741	266	2193	2712
			load	1018	889	1510	144	1010	1426
			domContentLoaded	1004	879	1496	144	997	1415
			domInteractive	35	17	152	27	32	116
			firstPaint	563	104	1517	398	960	1334
			backgroundConnect	263	203	729	119	232	573
			firstReactRender	55	39	100	10	61	77
			getState	190	134	681	86	188	227
			initialActions	1	0	4	1	1	2
			loadScripts	798	686	1294	144	788	1208
			setupStore	20	10	73	10	22	43
			numNetworkReqs	163	70	393	68	202	321
	Webpack	Standard Home	uiStartup	810	687	1034	88	864	973
			load	628	559	823	75	646	804
			domContentLoaded	624	555	817	75	641	796
			domInteractive	25	14	104	21	20	85
			firstPaint	234	90	665	153	224	608
			backgroundConnect	10	5	79	9	10	27
			firstReactRender	27	19	71	7	31	39
			getState	25	13	53	9	32	43
			initialActions	1	0	5	1	1	1
			loadScripts	621	553	815	73	639	789
			setupStore	10	6	37	4	13	17
			numNetworkReqs	12	5	76	20	5	73
	Webpack	Power User Home	uiStartup	1645	1264	2248	250	1899	2069
			load	673	580	1058	90	689	911
			domContentLoaded	663	573	1053	91	675	905
			domInteractive	36	17	162	31	33	135
			firstPaint	251	101	919	144	260	663
			backgroundConnect	72	8	645	155	18	550
			firstReactRender	60	43	122	11	66	78
			getState	184	84	685	88	182	243
			initialActions	1	0	4	1	1	2
			loadScripts	660	571	1044	89	673	895
			setupStore	21	10	56	12	23	52
			numNetworkReqs	163	69	407	78	209	380
Firefox	Browserify	Standard Home	uiStartup	1268	1062	1754	130	1348	1496
			load	1041	889	1299	85	1113	1200
			domContentLoaded	1041	889	1299	85	1113	1200
			domInteractive	57	31	188	31	79	127
			firstPaint	-	-	-	-	-	-
			backgroundConnect	42	20	198	28	43	102
			firstReactRender	22	17	55	6	23	35
			getState	14	6	136	19	10	31
			initialActions	1	0	3	1	2	2
			loadScripts	1015	873	1282	76	1074	1150
			setupStore	13	6	241	24	10	41
			numNetworkReqs	11	5	67	16	6	60
	Browserify	Power User Home	uiStartup	2575	1856	4449	561	2634	4305
			load	1148	914	2614	204	1159	1495
			domContentLoaded	1147	913	2613	204	1159	1493
			domInteractive	113	35	514	99	106	393
			firstPaint	-	-	-	-	-	-
			backgroundConnect	120	30	1250	162	111	282
			firstReactRender	59	38	141	19	61	110
			getState	289	53	1028	240	353	803
			initialActions	3	1	92	9	2	3
			loadScripts	1094	896	1592	135	1116	1440
			setupStore	186	10	797	206	258	706
			numNetworkReqs	103	63	289	56	113	240
	Webpack	Standard Home	uiStartup	1490	1288	1975	150	1590	1787
			load	1236	1080	1552	99	1307	1417
			domContentLoaded	1235	1078	1552	99	1307	1417
			domInteractive	59	29	155	31	84	116
			firstPaint	-	-	-	-	-	-
			backgroundConnect	52	21	185	36	58	153
			firstReactRender	26	19	73	7	28	40
			getState	12	6	95	11	12	21
			initialActions	1	0	3	1	2	2
			loadScripts	1207	1064	1534	91	1280	1350
			setupStore	16	6	137	21	14	73
			numNetworkReqs	12	5	69	17	7	62
	Webpack	Power User Home	uiStartup	2927	2133	5492	683	2927	4621
			load	1431	1176	2859	324	1490	2501
			domContentLoaded	1431	1176	2859	324	1490	2501
			domInteractive	107	29	537	106	94	408
			firstPaint	-	-	-	-	-	-
			backgroundConnect	126	31	1214	156	130	332
			firstReactRender	77	39	261	45	82	197
			getState	301	55	1199	240	416	829
			initialActions	2	0	31	3	2	3
			loadScripts	1372	1102	2768	263	1405	1772
			setupStore	148	7	1008	205	137	646
			numNetworkReqs	99	61	244	52	102	239

📊 Page Load Benchmark Results

Current Commit: 279a9d4 | Date: 11/27/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.03s (±41ms) 🟡 | historical mean value: 1.04s ⬇️ (historical data)
domContentLoaded-> current mean value: 719ms (±38ms) 🟢 | historical mean value: 726ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 77ms (±13ms) 🟢 | historical mean value: 79ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.03s	41ms	1.01s	1.35s	1.06s	1.35s
domContentLoaded	719ms	38ms	696ms	1.01s	746ms	1.01s
firstPaint	77ms	13ms	60ms	196ms	88ms	196ms
firstContentfulPaint	77ms	13ms	60ms	196ms	88ms	196ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 1.42 KiB (0.03%)
ui: 5 Bytes (0%)
common: 370 Bytes (0%)

COMMIT_MESSAGE.txt

metamaskbot · 2025-11-28T03:10:42Z

Builds ready [c6166f4]

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 (1203 ± 96 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	1203	998	1465	96	1267	1382
			load	1006	857	1208	82	1053	1174
			domContentLoaded	1001	852	1197	80	1048	1167
			domInteractive	25	15	110	20	20	82
			firstPaint	443	98	1210	359	922	1120
			backgroundConnect	209	192	249	11	216	234
			firstReactRender	32	18	81	10	36	52
			getState	35	15	156	17	39	54
			initialActions	1	0	10	1	1	2
			loadScripts	797	655	977	79	845	964
			setupStore	11	6	21	3	13	18
			numNetworkReqs	12	5	76	20	5	72
	Browserify	Power User Home	uiStartup	2126	1787	3093	253	2304	2611
			load	1031	890	1600	137	1039	1403
			domContentLoaded	1017	885	1590	137	1009	1393
			domInteractive	35	17	174	28	32	114
			firstPaint	497	107	1435	368	943	1213
			backgroundConnect	257	198	757	105	229	537
			firstReactRender	58	38	122	12	62	82
			getState	197	142	689	77	205	256
			initialActions	1	0	7	1	1	3
			loadScripts	809	689	1374	137	802	1181
			setupStore	21	8	82	10	24	45
			numNetworkReqs	151	69	369	68	200	317
	Webpack	Standard Home	uiStartup	813	684	1180	86	845	975
			load	635	564	942	76	658	805
			domContentLoaded	630	560	935	75	653	797
			domInteractive	25	15	106	21	21	82
			firstPaint	237	78	837	171	219	623
			backgroundConnect	11	5	75	10	10	26
			firstReactRender	28	19	277	26	30	39
			getState	26	12	47	9	33	44
			initialActions	1	0	4	1	1	1
			loadScripts	627	558	925	74	651	789
			setupStore	10	6	22	3	12	17
			numNetworkReqs	12	5	77	20	5	72
	Webpack	Power User Home	uiStartup	1673	1298	2509	251	1927	2102
			load	688	584	1178	101	692	949
			domContentLoaded	679	579	1172	102	678	943
			domInteractive	37	18	196	36	32	141
			firstPaint	314	88	992	218	392	702
			backgroundConnect	87	8	595	170	20	538
			firstReactRender	62	44	114	10	67	76
			getState	173	141	229	17	183	208
			initialActions	1	0	3	0	1	2
			loadScripts	676	577	1163	100	675	934
			setupStore	21	7	56	11	23	47
			numNetworkReqs	167	70	403	79	209	381
Firefox	Browserify	Standard Home	uiStartup	1327	1057	2427	188	1396	1684
			load	1095	907	2097	142	1147	1295
			domContentLoaded	1094	903	2096	142	1146	1295
			domInteractive	61	32	154	30	86	116
			firstPaint	-	-	-	-	-	-
			backgroundConnect	54	24	361	49	62	126
			firstReactRender	24	18	62	8	23	46
			getState	10	6	32	4	11	24
			initialActions	1	0	3	1	2	2
			loadScripts	1059	892	2011	128	1099	1267
			setupStore	11	5	89	10	10	30
			numNetworkReqs	11	5	66	15	7	59
	Browserify	Power User Home	uiStartup	2678	1949	4687	663	2660	4491
			load	1218	962	2775	384	1162	2499
			domContentLoaded	1217	962	2775	384	1162	2499
			domInteractive	119	33	626	111	112	441
			firstPaint	-	-	-	-	-	-
			backgroundConnect	174	27	1441	292	111	1146
			firstReactRender	60	35	137	19	62	102
			getState	271	79	918	213	336	791
			initialActions	2	1	8	1	2	3
			loadScripts	1116	943	1615	164	1125	1543
			setupStore	148	9	784	188	173	687
			numNetworkReqs	98	51	315	57	81	229
	Webpack	Standard Home	uiStartup	1478	1277	1916	145	1553	1782
			load	1230	1052	1518	102	1301	1449
			domContentLoaded	1230	1051	1512	102	1301	1448
			domInteractive	59	25	144	34	85	132
			firstPaint	-	-	-	-	-	-
			backgroundConnect	47	18	182	30	46	109
			firstReactRender	27	20	80	7	29	36
			getState	14	6	181	22	13	23
			initialActions	1	0	3	1	1	2
			loadScripts	1203	1037	1495	94	1253	1377
			setupStore	13	6	108	15	12	41
			numNetworkReqs	12	5	69	16	7	63
	Webpack	Power User Home	uiStartup	2955	2113	5526	736	2994	4805
			load	1420	1146	2808	339	1395	2561
			domContentLoaded	1420	1146	2808	338	1394	2561
			domInteractive	111	32	578	114	96	436
			firstPaint	-	-	-	-	-	-
			backgroundConnect	153	35	1246	216	142	479
			firstReactRender	72	40	300	39	73	147
			getState	252	60	1224	204	259	687
			initialActions	2	0	6	1	2	3
			loadScripts	1342	1127	2563	208	1352	1712
			setupStore	175	7	943	232	177	714
			numNetworkReqs	103	65	255	59	86	246

📊 Page Load Benchmark Results

Current Commit: c6166f4 | Date: 11/28/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.04s (±50ms) 🟡 | historical mean value: 1.04s ⬇️ (historical data)
domContentLoaded-> current mean value: 723ms (±45ms) 🟢 | historical mean value: 726ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 77ms (±16ms) 🟢 | historical mean value: 79ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	50ms	1.01s	1.44s	1.08s	1.44s
domContentLoaded	723ms	45ms	698ms	1.08s	755ms	1.08s
firstPaint	77ms	16ms	64ms	220ms	88ms	220ms
firstContentfulPaint	77ms	16ms	64ms	220ms	88ms	220ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 58 Bytes (0%)
ui: 0 Bytes (0%)
common: 373 Bytes (0%)

metamaskbot · 2025-11-28T09:35:19Z

Builds ready [76b6e1b]

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 (1244 ± 115 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	1244	1025	1511	115	1335	1437
			load	1037	858	1289	99	1107	1208
			domContentLoaded	1031	855	1283	98	1098	1204
			domInteractive	26	15	107	21	21	90
			firstPaint	487	80	1252	397	999	1176
			backgroundConnect	218	197	292	14	224	246
			firstReactRender	32	20	137	15	37	53
			getState	34	17	67	12	41	58
			initialActions	1	0	4	1	1	1
			loadScripts	819	649	1075	94	884	991
			setupStore	10	6	20	3	11	18
			numNetworkReqs	12	5	78	21	5	74
	Browserify	Power User Home	uiStartup	2070	1685	2721	257	2237	2655
			load	1018	897	1503	126	1015	1360
			domContentLoaded	1003	889	1490	124	997	1351
			domInteractive	33	17	141	25	31	112
			firstPaint	527	85	1416	403	964	1291
			backgroundConnect	271	201	739	129	237	590
			firstReactRender	57	41	108	13	63	97
			getState	179	141	259	24	195	226
			initialActions	1	0	3	1	1	2
			loadScripts	794	685	1268	122	787	1147
			setupStore	21	11	57	9	24	44
			numNetworkReqs	164	69	382	66	203	320
	Webpack	Standard Home	uiStartup	875	722	1100	91	921	1067
			load	674	585	925	83	690	859
			domContentLoaded	669	581	921	82	684	852
			domInteractive	31	16	126	26	25	107
			firstPaint	252	84	842	184	241	667
			backgroundConnect	12	6	34	7	13	28
			firstReactRender	29	21	81	8	35	42
			getState	28	14	87	13	36	48
			initialActions	1	0	4	1	1	1
			loadScripts	666	579	919	81	682	846
			setupStore	11	6	41	5	13	19
			numNetworkReqs	12	5	77	20	5	71
	Webpack	Power User Home	uiStartup	1674	1298	2185	253	1927	2112
			load	675	579	1185	103	682	955
			domContentLoaded	666	571	1178	104	668	949
			domInteractive	37	17	190	34	31	127
			firstPaint	280	93	1186	219	246	689
			backgroundConnect	95	7	752	186	21	564
			firstReactRender	62	43	101	11	67	87
			getState	173	137	656	51	174	216
			initialActions	1	0	3	1	1	2
			loadScripts	663	569	1168	102	666	941
			setupStore	23	10	56	12	26	48
			numNetworkReqs	167	68	417	80	209	386
Firefox	Browserify	Standard Home	uiStartup	1258	1058	1828	165	1350	1593
			load	1042	906	1467	110	1103	1283
			domContentLoaded	1042	906	1467	110	1102	1283
			domInteractive	56	31	165	31	73	129
			firstPaint	-	-	-	-	-	-
			backgroundConnect	40	17	165	28	40	102
			firstReactRender	22	17	50	5	22	35
			getState	12	5	201	21	11	22
			initialActions	1	0	3	0	1	2
			loadScripts	1016	879	1379	98	1079	1225
			setupStore	13	5	154	19	10	38
			numNetworkReqs	11	5	66	15	6	56
	Browserify	Power User Home	uiStartup	2630	1969	4325	335	2794	3196
			load	1208	1052	1633	125	1213	1509
			domContentLoaded	1208	1051	1633	125	1213	1509
			domInteractive	132	40	521	103	127	428
			firstPaint	-	-	-	-	-	-
			backgroundConnect	106	30	440	68	120	256
			firstReactRender	63	39	151	18	65	101
			getState	250	55	926	176	268	669
			initialActions	3	0	42	5	2	7
			loadScripts	1176	1033	1615	122	1176	1471
			setupStore	211	10	771	213	273	690
			numNetworkReqs	100	61	318	64	79	244
	Webpack	Standard Home	uiStartup	1499	1292	1904	131	1573	1769
			load	1246	1094	1523	84	1291	1423
			domContentLoaded	1246	1094	1523	84	1291	1422
			domInteractive	63	27	160	32	85	127
			firstPaint	-	-	-	-	-	-
			backgroundConnect	47	17	188	30	46	113
			firstReactRender	28	20	80	10	28	56
			getState	15	7	168	22	12	29
			initialActions	1	0	2	0	1	2
			loadScripts	1220	1079	1438	78	1270	1383
			setupStore	13	6	95	14	11	39
			numNetworkReqs	12	5	67	17	7	65
	Webpack	Power User Home	uiStartup	3110	2364	4865	496	3287	4079
			load	1583	1261	2246	217	1651	2103
			domContentLoaded	1582	1260	2245	217	1651	2102
			domInteractive	150	35	643	145	132	584
			firstPaint	-	-	-	-	-	-
			backgroundConnect	135	35	497	73	155	272
			firstReactRender	72	47	152	15	78	100
			getState	274	49	988	192	325	690
			initialActions	5	1	53	9	3	30
			loadScripts	1543	1238	2186	213	1610	2015
			setupStore	186	17	1154	229	211	708
			numNetworkReqs	100	61	309	62	80	254

📊 Page Load Benchmark Results

Current Commit: 76b6e1b | Date: 11/28/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.04s (±48ms) 🟡 | historical mean value: 1.03s ⬆️ (historical data)
domContentLoaded-> current mean value: 723ms (±44ms) 🟢 | historical mean value: 717ms ⬆️ (historical data)
firstContentfulPaint-> current mean value: 78ms (±18ms) 🟢 | historical mean value: 77ms ⬆️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	48ms	1.01s	1.42s	1.06s	1.42s
domContentLoaded	723ms	44ms	698ms	1.07s	742ms	1.07s
firstPaint	78ms	18ms	60ms	244ms	88ms	244ms
firstContentfulPaint	78ms	18ms	60ms	244ms	88ms	244ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 58 Bytes (0%)
ui: 0 Bytes (0%)
common: 373 Bytes (0%)

feat: update megaeth testnet config and add megaeth mainnet

4da1139

wantedsystem requested review from a team as code owners November 27, 2025 18:01

metamaskbot added the team-network-enablement label Nov 27, 2025

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ui/pages/confirmations/hooks/useEIP7702Networks.test.ts Outdated Show resolved Hide resolved

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shared/constants/common.ts Show resolved Hide resolved

wantedsystem added 2 commits November 27, 2025 19:21

fix: fix cursor comments

d78809a

Merge branch 'main' into feat/add-megaeth-popular-networks

a7b889d

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app/scripts/migrations/184.ts Outdated Show resolved Hide resolved

fix: fix lint

712cd24

Merge branch 'main' into feat/add-megaeth-popular-networks

279a9d4

revert megaeth testnet chain id and rpc url changes

b9e8b63

wantedsystem requested a review from a team as a code owner November 28, 2025 02:26

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chore: delete useless commit message

c6166f4

Merge branch 'main' into feat/add-megaeth-popular-networks

a04e984

wantedsystem changed the title ~~feat: update megaeth testnet config and add megaeth mainnet~~ feat: add megaeth mainnet Nov 28, 2025

khanti42 approved these changes Nov 28, 2025

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Merge branch 'main' into feat/add-megaeth-popular-networks

76b6e1b

wantedsystem added this to PR review queue Nov 28, 2025

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wantedsystem enabled auto-merge November 28, 2025 09:47

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sugh01 approved these changes Nov 28, 2025

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feat: add megaeth mainnet #38369

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feat: add megaeth mainnet #38369

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Description

MegaETH Mainnet

Changelog

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Pre-merge author checklist

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📄 Localhost MetaMask Test Dapp

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📄 Localhost MetaMask Test Dapp

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wantedsystem commented Nov 27, 2025 •

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