docs: update feature flag registry documentation by Unik0rnMaggie · Pull Request #40554 · MetaMask/metamask-extension

Unik0rnMaggie · 2026-03-03T08:13:44Z

Description

Add a new Feature Flag Registry section to README.md to document how remote flags are managed for E2E tests.
Explain the full workflow: production source-of-truth, E2E mock behavior, CI enforcement via check-feature-flag-registry, and registry entry format.
Document contributor guidance for adding, overriding, and removing feature flags, including helper utilities and constant mapping requirements.

The feature flag registry and CI check were added to keep flag usage production-accurate and prevent untracked flag references. This documentation makes the workflow discoverable and reduces onboarding/friction for contributors updating or introducing flags.

Changelog

CHANGELOG entry: null

Related issues

Fixes: MMQA-1481

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.

Note

Low Risk
Low risk: documentation-only changes with no runtime behavior modifications.

Overview
Updates README.md E2E guidance to clearly separate remote (runtime) vs build-time (compile-time) feature flags and points to the recommended test-time override mechanisms (manifestFlags in withFixtures, legacy FixtureBuilder.withRemoteFeatureFlags()).

Adds a new Feature Flag Registry section documenting test/e2e/feature-flags/feature-flag-registry.ts as the source of truth for remote flags in E2E, how the check-feature-flag-registry CI job enforces registry coverage, and contributor steps to add/override/remove flags (including constant mapping in .github/scripts/known-feature-flag-constants.ts).

^{Written by Cursor Bugbot for commit 1163560. This will update automatically on new commits. Configure here.}

github-actions · 2026-03-03T08:13:55Z

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.

metamaskbotv2 · 2026-03-03T09:04:52Z

Builds ready [d601b51]

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
interaction-benchmark: Interaction Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 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

⚡ Performance Benchmarks

👆 Interaction Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Load New Account load_new_account 282 265 295 12 292 295
total 282 265 295 12 292 295
Confirm Tx confirm_tx 6095 6048 6155 37 6113 6155
total 6095 6048 6155 37 6113 6155
Bridge User Actions bridge_load_page 251 202 303 43 300 303
bridge_load_asset_picker 214 210 219 4 219 219
bridge_search_token 719 701 735 13 728 735
total 1178 1104 1250 58 1238 1250

🔌 Startup Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Standard Home uiStartup 1426 1208 1712 105 1479 1612
load 1192 1014 1387 90 1235 1365
domContentLoaded 1186 1009 1382 88 1228 1357
domInteractive 28 17 97 18 26 77
firstPaint 160 73 1196 127 204 297
backgroundConnect 212 195 351 19 215 249
firstReactRender 20 12 56 7 21 29
initialActions 1 0 7 1 2 4
loadScripts 989 818 1185 86 1028 1155
setupStore 13 6 40 6 15 29
numNetworkReqs 31 22 87 19 23 81
Power User Home uiStartup 1738 1376 2274 162 1776 2006
load 1147 1017 1736 157 1129 1602
domContentLoaded 1133 1004 1697 152 1113 1585
domInteractive 39 19 243 33 36 111
firstPaint 190 78 498 91 248 375
backgroundConnect 289 260 415 27 297 333
firstReactRender 23 15 59 7 25 40
initialActions 1 0 3 1 1 3
loadScripts 926 798 1497 150 906 1376
setupStore 15 7 41 6 17 25
numNetworkReqs 59 38 147 27 55 141

🧭 User Journey Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Onboarding Import Wallet importWalletToSocialScreen 226 218 246 11 230 246
srpButtonToSrpForm 91 89 93 2 93 93
confirmSrpToPwForm 21 21 22 0 22 22
pwFormToMetricsScreen 15 14 15 0 15 15
metricsToWalletReadyScreen 15 15 16 0 15 16
doneButtonToHomeScreen 574 566 582 5 576 582
openAccountMenuToAccountListLoaded 7318 7002 7847 351 7627 7847
total 8355 7940 8788 337 8573 8788
Onboarding New Wallet createWalletToSocialScreen 221 219 222 1 221 222
srpButtonToPwForm 111 110 112 1 112 112
createPwToRecoveryScreen 9 9 9 0 9 9
skipBackupToMetricsScreen 37 36 39 1 37 39
agreeButtonToOnboardingSuccess 17 15 18 1 18 18
doneButtonToAssetList 835 494 1293 350 1228 1293
total 1231 888 1688 350 1625 1688
Asset Details assetClickToPriceChart 48 34 65 10 52 65
total 48 34 65 10 52 65
Solana Asset Details assetClickToPriceChart 48 48 49 0 49 49
total 48 48 49 0 49 49
Import Srp Home loginToHomeScreen 2099 1911 2244 141 2229 2244
openAccountMenuAfterLogin 39 34 43 3 40 43
homeAfterImportWithNewWallet 2391 2356 2454 44 2454 2454
total 4439 4314 4559 100 4559 4559
Send Transactions openSendPageFromHome 37 35 38 1 37 38
selectTokenToSendFormLoaded 19 17 21 2 20 21
reviewTransactionToConfirmationPage 852 844 859 6 859 859
total 903 883 915 11 913 915
Swap openSwapPageFromHome 101 89 120 13 113 120
fetchAndDisplaySwapQuotes 4670 4573 4742 71 4732 4742
total 4768 4662 4862 79 4823 4862

🌐 Dapp Page Load Benchmarks

Current Commit: d601b51 | Date: 3/3/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.06s (±38ms) 🟡 | historical mean value: 1.05s ⬆️ (historical data)
domContentLoaded-> current mean value: 725ms (±36ms) 🟢 | historical mean value: 737ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 82ms (±13ms) 🟢 | historical mean value: 82ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.06s	38ms	1.03s	1.34s	1.08s	1.34s
domContentLoaded	725ms	36ms	704ms	995ms	747ms	995ms
firstPaint	82ms	13ms	64ms	188ms	96ms	188ms
firstContentfulPaint	82ms	13ms	64ms	188ms	96ms	188ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

Bundle size diffs

background: 58 Bytes (0%)
ui: 5 Bytes (0%)
common: 20 Bytes (0%)

metamaskbotv2 · 2026-03-03T10:02:06Z

Builds ready [100db3a]

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
interaction-benchmark: Interaction Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 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

⚡ Performance Benchmarks

👆 Interaction Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Load New Account load_new_account 281 261 325 25 292 325
total 281 261 325 25 292 325
Confirm Tx confirm_tx 6038 6022 6047 10 6046 6047
total 6038 6022 6047 10 6046 6047
Bridge User Actions bridge_load_page 211 195 222 10 219 222
bridge_load_asset_picker 218 206 228 9 224 228
bridge_search_token 714 696 728 11 720 728
total 1150 1097 1194 34 1174 1194

🔌 Startup Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Standard Home uiStartup 1425 1180 1656 104 1481 1628
load 1199 995 1452 94 1247 1379
domContentLoaded 1191 993 1401 91 1242 1363
domInteractive 28 17 112 19 24 74
firstPaint 184 71 1322 173 222 347
backgroundConnect 210 191 423 24 210 232
firstReactRender 19 13 51 5 21 28
initialActions 1 0 6 1 1 4
loadScripts 998 802 1207 91 1051 1169
setupStore 13 5 44 6 15 21
numNetworkReqs 31 22 96 20 22 84
Power User Home uiStartup 2222 1479 10057 1302 2061 4292
load 1217 1058 1849 171 1220 1687
domContentLoaded 1198 1050 1816 160 1206 1593
domInteractive 40 21 156 27 38 103
firstPaint 218 76 1655 221 260 401
backgroundConnect 610 269 7510 1114 328 2337
firstReactRender 24 15 52 8 25 43
initialActions 1 0 7 1 1 3
loadScripts 980 840 1576 156 996 1376
setupStore 16 6 56 7 18 28
numNetworkReqs 70 38 154 27 80 126

🧭 User Journey Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Onboarding Import Wallet importWalletToSocialScreen 220 219 222 1 221 222
srpButtonToSrpForm 96 96 96 0 96 96
confirmSrpToPwForm 21 21 22 0 21 22
pwFormToMetricsScreen 17 15 18 1 18 18
metricsToWalletReadyScreen 17 15 19 1 18 19
doneButtonToHomeScreen 1025 598 1440 348 1437 1440
openAccountMenuToAccountListLoaded 7465 7005 7695 288 7693 7695
total 8861 8664 9056 128 8911 9056
Onboarding New Wallet createWalletToSocialScreen 219 217 222 2 219 222
srpButtonToPwForm 108 106 111 2 108 111
createPwToRecoveryScreen 8 8 9 0 8 9
skipBackupToMetricsScreen 36 35 38 1 38 38
agreeButtonToOnboardingSuccess 17 17 17 0 17 17
doneButtonToAssetList 639 481 875 145 619 875
total 1026 871 1262 145 1004 1262
Asset Details assetClickToPriceChart 49 36 75 15 54 75
total 49 36 75 15 54 75
Solana Asset Details assetClickToPriceChart 48 46 50 2 49 50
total 48 46 50 2 49 50
Import Srp Home loginToHomeScreen 2042 1899 2205 131 2195 2205
openAccountMenuAfterLogin 41 38 44 2 42 44
homeAfterImportWithNewWallet 2537 2418 2716 119 2574 2716
total 4757 4395 5466 404 4949 5466
Send Transactions openSendPageFromHome 39 37 40 1 40 40
selectTokenToSendFormLoaded 21 20 22 1 21 22
reviewTransactionToConfirmationPage 874 852 900 19 892 900
total 933 911 961 18 945 961
Swap openSwapPageFromHome 120 106 130 9 129 130
fetchAndDisplaySwapQuotes 4603 4576 4650 30 4611 4650
total 4721 4700 4762 25 4717 4762

🌐 Dapp Page Load Benchmarks

Current Commit: 100db3a | Date: 3/3/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.04s (±40ms) 🟡 | historical mean value: 1.05s ⬇️ (historical data)
domContentLoaded-> current mean value: 731ms (±38ms) 🟢 | historical mean value: 737ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 79ms (±14ms) 🟢 | historical mean value: 82ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	40ms	1.02s	1.35s	1.07s	1.35s
domContentLoaded	731ms	38ms	710ms	1.02s	755ms	1.02s
firstPaint	79ms	14ms	64ms	208ms	88ms	208ms
firstContentfulPaint	79ms	14ms	64ms	208ms	88ms	208ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 58 Bytes (0%)
ui: 12.41 KiB (0.15%)
common: -414 Bytes (0%)

README.md

metamaskbotv2 · 2026-03-04T10:33:23Z

Builds ready [b82354c]

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
interaction-benchmark: Interaction Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 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

⚡ Performance Benchmarks

👆 Interaction Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Load New Account load_new_account 294 261 351 33 310 351
total 294 261 351 33 310 351
Confirm Tx confirm_tx 6034 5993 6054 23 6051 6054
total 6034 5993 6054 23 6051 6054
Bridge User Actions bridge_load_page 212 193 230 14 218 230
bridge_load_asset_picker 234 166 303 45 251 303
bridge_search_token 719 699 737 16 732 737
total 1199 1095 1354 96 1261 1354

🔌 Startup Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Standard Home uiStartup 1402 1189 1706 99 1422 1599
load 1177 1002 1426 89 1204 1355
domContentLoaded 1170 997 1417 88 1201 1348
domInteractive 28 17 95 17 25 78
firstPaint 157 68 1202 132 210 337
backgroundConnect 206 193 254 12 209 235
firstReactRender 19 12 44 5 21 29
initialActions 1 0 5 1 2 3
loadScripts 979 810 1226 87 1009 1147
setupStore 12 7 42 5 14 19
numNetworkReqs 31 22 86 19 25 83
Power User Home uiStartup 2439 1405 9787 1527 2271 4662
load 1202 1013 1898 164 1245 1602
domContentLoaded 1185 1008 1714 157 1218 1591
domInteractive 39 19 186 26 39 100
firstPaint 190 79 1731 172 247 305
backgroundConnect 764 259 7998 1195 427 2505
firstReactRender 24 16 45 7 27 39
initialActions 1 0 6 1 1 4
loadScripts 972 821 1502 148 1011 1346
setupStore 15 6 43 6 17 32
numNetworkReqs 74 32 164 27 84 131

🧭 User Journey Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Onboarding Import Wallet importWalletToSocialScreen 218 218 218 0 218 218
srpButtonToSrpForm 94 93 95 1 95 95
confirmSrpToPwForm 21 21 22 0 22 22
pwFormToMetricsScreen 15 15 15 0 15 15
metricsToWalletReadyScreen 16 16 17 0 17 17
doneButtonToHomeScreen 634 593 701 39 653 701
openAccountMenuToAccountListLoaded 2927 2901 2949 19 2947 2949
total 3934 3881 4010 48 3967 4010
Onboarding New Wallet createWalletToSocialScreen 221 219 224 2 223 224
srpButtonToPwForm 112 108 117 4 116 117
createPwToRecoveryScreen 9 8 10 0 9 10
skipBackupToMetricsScreen 37 35 41 2 39 41
agreeButtonToOnboardingSuccess 17 16 18 1 18 18
doneButtonToAssetList 606 582 620 15 616 620
total 1001 990 1011 9 1009 1011
Asset Details assetClickToPriceChart 66 41 94 21 78 94
total 66 41 94 21 78 94
Solana Asset Details assetClickToPriceChart 109 71 192 46 125 192
total 109 71 192 46 125 192
Import Srp Home loginToHomeScreen 1939 1858 2034 63 1938 2034
openAccountMenuAfterLogin 43 33 59 11 53 59
homeAfterImportWithNewWallet 2634 2542 2771 99 2740 2771
total 4580 4433 4737 113 4622 4737
Send Transactions openSendPageFromHome 23 19 27 3 25 27
selectTokenToSendFormLoaded 22 22 23 1 23 23
reviewTransactionToConfirmationPage 849 846 852 2 850 852
total 895 894 895 0 895 895
Swap openSwapPageFromHome 118 115 120 2 120 120
fetchAndDisplaySwapQuotes 2899 2894 2904 4 2902 2904
total 3017 3012 3022 4 3019 3022

🌐 Dapp Page Load Benchmarks

Current Commit: b82354c | Date: 3/4/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 966ms (±40ms) 🟢 | historical mean value: 1.06s ⬇️ (historical data)
domContentLoaded-> current mean value: 679ms (±36ms) 🟢 | historical mean value: 748ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 76ms (±10ms) 🟢 | historical mean value: 83ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	966ms	40ms	941ms	1.24s	988ms	1.24s
domContentLoaded	679ms	36ms	656ms	941ms	695ms	941ms
firstPaint	76ms	10ms	64ms	160ms	88ms	160ms
firstContentfulPaint	76ms	10ms	64ms	160ms	88ms	160ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 1.13 KiB (0.02%)
ui: 6.51 KiB (0.08%)
common: 4.34 KiB (0.04%)

README.md

sonarqubecloud · 2026-03-04T15:59:34Z

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

metamaskbotv2 · 2026-03-04T16:21:47Z

Builds ready [1163560]

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
interaction-benchmark: Interaction Stats
storybook: Storybook
typescript migration: Dashboard
all artifacts
bundle viz:
- background: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
- common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18
- 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

⚡ Performance Benchmarks

👆 Interaction Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Load New Account load_new_account 349 265 520 96 385 520
total 349 265 520 96 385 520
Confirm Tx confirm_tx 6050 6001 6081 34 6081 6081
total 6050 6001 6081 34 6081 6081
Bridge User Actions bridge_load_page 246 236 251 7 251 251
bridge_load_asset_picker 215 155 296 49 244 296
bridge_search_token 726 698 760 21 736 760
total 1152 1103 1201 35 1155 1201

🔌 Startup Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Standard Home uiStartup 1426 1227 1768 105 1465 1653
load 1197 995 1467 92 1233 1372
domContentLoaded 1191 990 1461 91 1227 1365
domInteractive 27 17 92 16 25 69
firstPaint 149 70 447 74 201 276
backgroundConnect 215 194 285 15 220 244
firstReactRender 19 12 47 5 20 27
initialActions 1 0 6 1 2 4
loadScripts 991 791 1274 90 1030 1160
setupStore 13 6 53 7 15 21
numNetworkReqs 32 22 98 20 22 84
Power User Home uiStartup 1747 1412 2666 169 1788 1963
load 1181 1060 1691 144 1186 1575
domContentLoaded 1167 1050 1679 142 1166 1569
domInteractive 39 21 197 27 36 95
firstPaint 177 78 484 90 240 352
backgroundConnect 306 263 726 48 312 340
firstReactRender 23 16 52 6 24 37
initialActions 1 0 4 1 1 2
loadScripts 950 836 1431 136 951 1339
setupStore 15 9 30 4 17 23
numNetworkReqs 60 36 152 25 60 133

🧭 User Journey Benchmarks
Benchmark Metric Mean (ms) Min (ms) Max (ms) Std Dev (ms) P75 (ms) P95 (ms)
Onboarding Import Wallet importWalletToSocialScreen 221 219 223 2 222 223
srpButtonToSrpForm 99 98 102 1 100 102
confirmSrpToPwForm 24 24 25 0 25 25
pwFormToMetricsScreen 18 18 18 0 18 18
metricsToWalletReadyScreen 18 18 18 0 18 18
doneButtonToHomeScreen 715 604 880 109 807 880
openAccountMenuToAccountListLoaded 2936 2911 2963 21 2949 2963
total 3980 3973 3989 7 3989 3989
Onboarding New Wallet createWalletToSocialScreen 218 217 219 1 219 219
srpButtonToPwForm 119 109 129 8 125 129
createPwToRecoveryScreen 9 8 9 0 9 9
skipBackupToMetricsScreen 36 36 37 1 37 37
agreeButtonToOnboardingSuccess 16 16 16 0 16 16
doneButtonToAssetList 560 496 660 65 611 660
total 959 883 1059 69 1020 1059
Asset Details assetClickToPriceChart 45 38 51 5 49 51
total 45 38 51 5 49 51
Solana Asset Details assetClickToPriceChart 83 83 84 1 84 84
total 83 83 84 1 84 84
Import Srp Home loginToHomeScreen 2109 2003 2210 78 2172 2210
openAccountMenuAfterLogin 39 30 50 7 43 50
homeAfterImportWithNewWallet 3005 2812 3232 157 3069 3232
total 5154 5034 5271 88 5235 5271
Send Transactions openSendPageFromHome 23 18 26 3 25 26
selectTokenToSendFormLoaded 23 18 33 5 25 33
reviewTransactionToConfirmationPage 854 849 866 7 851 866
total 899 888 909 8 903 909
Swap openSwapPageFromHome 113 79 140 22 131 140
fetchAndDisplaySwapQuotes 2907 2893 2927 12 2915 2927
total 3020 2994 3039 18 3038 3039

🌐 Dapp Page Load Benchmarks

Current Commit: 1163560 | Date: 3/4/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

pageLoadTime-> current mean value: 1.05s (±42ms) 🟡 | historical mean value: 1.06s ⬇️ (historical data)
domContentLoaded-> current mean value: 736ms (±39ms) 🟢 | historical mean value: 746ms ⬇️ (historical data)
firstContentfulPaint-> current mean value: 81ms (±9ms) 🟢 | historical mean value: 82ms ⬇️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.05s	42ms	1.02s	1.35s	1.09s	1.35s
domContentLoaded	736ms	39ms	708ms	1.03s	764ms	1.03s
firstPaint	81ms	9ms	64ms	156ms	92ms	156ms
firstContentfulPaint	81ms	9ms	64ms	156ms	92ms	156ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

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

background: 1.45 KiB (0.03%)
ui: 11.15 KiB (0.13%)
common: 4.16 KiB (0.04%)

DDDDDanica · 2026-03-04T17:05:48Z

LGTM ! ✅

docs: update feature flag registry documentation

bba8e35

Unik0rnMaggie temporarily deployed to pr-comment March 3, 2026 08:13 — with GitHub Actions Inactive

metamaskbot added the team-qa QA team label Mar 3, 2026

github-actions bot added the size-S label Mar 3, 2026

style: format README with prettier

d601b51

Unik0rnMaggie temporarily deployed to pr-comment March 3, 2026 08:31 — with GitHub Actions Inactive

Unik0rnMaggie temporarily deployed to pr-comment March 3, 2026 08:58 — with GitHub Actions Inactive

docs: split feature flag section into remote and build-time

100db3a

Unik0rnMaggie temporarily deployed to pr-comment March 3, 2026 09:31 — with GitHub Actions Inactive

github-actions bot added size-M and removed size-S labels Mar 3, 2026

Unik0rnMaggie temporarily deployed to pr-comment March 3, 2026 09:57 — with GitHub Actions Inactive

LeVinhGithub reviewed Mar 4, 2026

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docs: address PR feedback on feature flag registry section

b82354c

Unik0rnMaggie temporarily deployed to pr-comment March 4, 2026 09:59 — with GitHub Actions Inactive

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LeVinhGithub previously approved these changes Mar 4, 2026

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