feat: enable sidepanel for social login rehydration

[lwin-kyaw]

Description

This PR enables SidePanel for the social login rehydration.

Changelog

CHANGELOG entry: enable sidepanel for the social login rehydration

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

Screen.Recording.2026-04-06.at.12.43.25.PM.mov

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

Medium Risk
Changes unlock/rehydration completion logic for FirstTimeFlowType.socialImport, including new sidepanel-specific completion actions and navigation, which can affect onboarding state and routing if mis-ordered or if async completion fails.

Overview
Enables sidepanel-aware completion for social login rehydration during onboarding unlock. When seedless socialImport users unlock, onboarding now conditionally sets sidepanel as default and dispatches setCompletedOnboardingWithSidepanel, then navigates immediately to the post-unlock route; non-sidepanel flows continue to mark onboarding complete and rely on the existing completedOnboarding redirect.

Tests were updated to mock thunk-style action creators and add coverage ensuring the loading overlay stays visible until the async rehydration completion action resolves (both sidepanel and non-sidepanel cases).

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[metamaskbotv2]

Builds ready [c877d2d]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• webpack builds: chrome, firefox
• webpack builds (beta): chrome, firefox
• webpack builds (flask): chrome, firefox
• webpack builds (test): chrome, firefox
• webpack 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
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
  • 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 (Total: 🟢 6 pass · 🟡 12 warn · 🔴 0 fail)

Baseline (latest main): f34f804 | Date: 9/10/58222 | Pipeline: 24018877272 | Baseline logs

Interaction Benchmarks

Benchmark	chrome-browserify
loadNewAccount	🟡 [Show logs]
confirmTx	🟡 [Show logs]
bridgeUserActions	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ bridgeUserActions/bridge_search_token: -20%
• ↓ bridgeUserActions/total: -15%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 loadNewAccount/FCP: p75 2.6s
• 🟡 confirmTx/FCP: p75 2.6s
• 🟡 bridgeUserActions/FCP: p75 2.6s

Startup Benchmarks

Benchmark	chrome-browserify	chrome-webpack	firefox-browserify	firefox-webpack
startupStandardHome	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]
startupPowerUserHome	🟡 [Show logs]	🟡 [Show logs]	🟡 [Show logs]	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/uiStartup: -11%
• ↓ startupStandardHome/load: -12%
• ↓ startupStandardHome/domContentLoaded: -14%
• ↑ startupStandardHome/domInteractive: +11%
• ↑ startupStandardHome/backgroundConnect: +11%
• ↓ startupStandardHome/initialActions: -38%
• ↓ startupStandardHome/loadScripts: -17%
• ↓ startupStandardHome/numNetworkReqs: -21%
• ↑ startupPowerUserHome/backgroundConnect: +84%
• ↑ startupPowerUserHome/setupStore: +17%
• ↑ startupPowerUserHome/numNetworkReqs: +16%
• ↓ startupStandardHome/uiStartup: -14%
• ↓ startupStandardHome/load: -13%
• ↓ startupStandardHome/domContentLoaded: -13%
• ↓ startupStandardHome/backgroundConnect: -33%
• ↓ startupStandardHome/firstReactRender: -24%
• ↓ startupStandardHome/loadScripts: -12%
• ↓ startupStandardHome/numNetworkReqs: -29%
• ↓ startupPowerUserHome/domInteractive: -21%
• ↓ startupStandardHome/domInteractive: -60%
• ↓ startupStandardHome/initialActions: -38%
• ↓ startupStandardHome/numNetworkReqs: -18%
• ↓ startupPowerUserHome/backgroundConnect: -22%
• ↓ startupStandardHome/domInteractive: -33%
• ↓ startupStandardHome/backgroundConnect: -16%
• ↓ startupStandardHome/initialActions: -44%
• ↓ startupStandardHome/setupStore: -60%
• ↓ startupStandardHome/numNetworkReqs: -11%
• ↓ startupPowerUserHome/domInteractive: -17%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🔴 startupPowerUserHome/INP: p75 712ms
• 🔴 startupPowerUserHome/INP: p75 680ms
• 🟡 startupPowerUserHome/LCP: p75 3.5s
• 🟡 startupPowerUserHome/LCP: p75 3.7s

User Journey Benchmarks

Benchmark	chrome-browserify
onboardingImportWallet	🟢 [Show logs]
onboardingNewWallet	🟢 [Show logs]
assetDetails	🟡 [Show logs]
solanaAssetDetails	🟡 [Show logs]
importSrpHome	🟡 [Show logs]
sendTransactions	🟡 [Show logs]
swap	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ onboardingImportWallet/doneButtonToHomeScreen: -75%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +33%
• ↓ onboardingImportWallet/total: -38%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -10%
• ↑ onboardingNewWallet/agreeButtonToOnboardingSuccess: +20%
• ↓ onboardingNewWallet/doneButtonToAssetList: -39%
• ↓ onboardingNewWallet/total: -32%
• ↓ assetDetails/assetClickToPriceChart: -30%
• ↓ assetDetails/total: -30%
• ↓ solanaAssetDetails/assetClickToPriceChart: -58%
• ↓ solanaAssetDetails/total: -58%
• ↓ importSrpHome/openAccountMenuAfterLogin: -72%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -39%
• ↓ importSrpHome/total: -34%
• ↑ sendTransactions/openSendPageFromHome: +78%
• ↑ sendTransactions/reviewTransactionToConfirmationPage: +13%
• ↑ sendTransactions/total: +13%
• ↓ swap/openSwapPageFromHome: -86%
• ↑ swap/fetchAndDisplaySwapQuotes: +31%
• ↑ swap/total: +14%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 assetDetails/INP: p75 208ms
• 🟡 assetDetails/FCP: p75 2.5s
• 🟡 solanaAssetDetails/FCP: p75 2.5s
• 🟡 importSrpHome/FCP: p75 2.4s
• 🟡 sendTransactions/INP: p75 224ms
• 🟡 sendTransactions/FCP: p75 2.5s
• 🟡 swap/FCP: p75 2.5s

🌐 Dapp Page Load Benchmarks

Current Commit: c877d2d | Date: 4/6/2026

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.04s (±56ms) 🟡 | historical mean value: 1.04s ⬆️ (historical data)
• domContentLoaded-> current mean value: 733ms (±54ms) 🟢 | historical mean value: 728ms ⬆️ (historical data)
• firstContentfulPaint-> current mean value: 88ms (±27ms) 🟢 | historical mean value: 86ms ⬆️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.04s	56ms	1.01s	1.52s	1.06s	1.52s
domContentLoaded	733ms	54ms	709ms	1.20s	751ms	1.20s
firstPaint	88ms	27ms	72ms	348ms	96ms	348ms
firstContentfulPaint	88ms	27ms	72ms	348ms	96ms	348ms
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

Bundle size diffs

• background: 58 Bytes (0%)
• ui: 253 Bytes (0%)
• common: 20 Bytes (0%)

[metamaskbotv2]

✨ Files requiring CODEOWNER review ✨

🔐 @MetaMask/web3auth (2 files, +226 -25)

• 📁 ui/
  • 📁 pages/
    • 📁 onboarding-flow/
      • 📄 onboarding-flow.test.tsx +206 -21
      • 📄 onboarding-flow.tsx +20 -4

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[metamaskbotv2]

Builds ready [890d6d6]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• webpack builds: chrome, firefox
• webpack builds (beta): chrome, firefox
• webpack builds (flask): chrome, firefox
• webpack builds (test): chrome, firefox
• webpack 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
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21
  • 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 (Total: 🟢 6 pass · 🟡 12 warn · 🔴 0 fail)

Baseline (latest main): f34f804 | Date: 9/10/58222 | Pipeline: 24020364823 | Baseline logs

Interaction Benchmarks

Benchmark	chrome-browserify
loadNewAccount	🟡 load_new_account [Show logs]
confirmTx	🟡 [Show logs]
bridgeUserActions	🟡 [Show logs]

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 loadNewAccount/FCP: p75 2.4s
• 🟡 confirmTx/FCP: p75 2.4s
• 🟡 bridgeUserActions/FCP: p75 2.5s

Startup Benchmarks

Benchmark	chrome-browserify	chrome-webpack	firefox-browserify	firefox-webpack
startupStandardHome	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]	🟢 [Show logs]
startupPowerUserHome	🟡 [Show logs]	🟡 [Show logs]	🟡 [Show logs]	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/load: -10%
• ↓ startupStandardHome/domContentLoaded: -12%
• ↑ startupStandardHome/backgroundConnect: +15%
• ↓ startupStandardHome/firstReactRender: -17%
• ↓ startupStandardHome/initialActions: -38%
• ↓ startupStandardHome/loadScripts: -15%
• ↑ startupStandardHome/setupStore: +14%
• ↑ startupPowerUserHome/backgroundConnect: +78%
• ↓ startupPowerUserHome/numNetworkReqs: -45%
• ↓ startupStandardHome/uiStartup: -10%
• ↑ startupStandardHome/firstPaint: +14%
• ↓ startupStandardHome/backgroundConnect: -30%
• ↓ startupStandardHome/firstReactRender: -20%
• ↓ startupStandardHome/numNetworkReqs: -29%
• ↓ startupPowerUserHome/domInteractive: -14%
• ↑ startupPowerUserHome/numNetworkReqs: +13%
• ↓ startupStandardHome/domInteractive: -59%
• ↑ startupStandardHome/initialActions: +25%
• ↓ startupStandardHome/numNetworkReqs: -18%
• ↑ startupPowerUserHome/domInteractive: +10%
• ↓ startupPowerUserHome/backgroundConnect: -21%
• ↑ startupPowerUserHome/setupStore: +20%
• ↓ startupStandardHome/domInteractive: -30%
• ↓ startupStandardHome/backgroundConnect: -13%
• ↑ startupStandardHome/initialActions: +11%
• ↓ startupStandardHome/setupStore: -60%
• ↓ startupPowerUserHome/domInteractive: -11%
• ↓ startupPowerUserHome/backgroundConnect: -30%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🔴 startupPowerUserHome/INP: p75 672ms
• 🔴 startupPowerUserHome/INP: p75 656ms
• 🟡 startupPowerUserHome/LCP: p75 3.7s
• 🟡 startupPowerUserHome/LCP: p75 3.7s

User Journey Benchmarks

Benchmark	chrome-browserify
onboardingImportWallet	🟢 [Show logs]
onboardingNewWallet	🟢 [Show logs]
assetDetails	🟡 [Show logs]
solanaAssetDetails	🟡 [Show logs]
importSrpHome	🟡 [Show logs]
sendTransactions	🟡 [Show logs]
swap	🟡 [Show logs]

📈 Results compared to the previous 5 runs on main

• ↓ onboardingImportWallet/metricsToWalletReadyScreen: -39%
• ↓ onboardingImportWallet/doneButtonToHomeScreen: -75%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +33%
• ↓ onboardingImportWallet/total: -40%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -16%
• ↓ onboardingNewWallet/agreeButtonToOnboardingSuccess: -19%
• ↓ onboardingNewWallet/doneButtonToAssetList: -27%
• ↓ onboardingNewWallet/total: -24%
• ↓ assetDetails/assetClickToPriceChart: -65%
• ↓ assetDetails/total: -65%
• ↓ solanaAssetDetails/assetClickToPriceChart: -60%
• ↓ solanaAssetDetails/total: -60%
• ↓ importSrpHome/openAccountMenuAfterLogin: -75%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -38%
• ↓ importSrpHome/total: -32%
• ↑ sendTransactions/openSendPageFromHome: +57%
• ↓ swap/openSwapPageFromHome: -86%
• ↑ swap/fetchAndDisplaySwapQuotes: +32%
• ↑ swap/total: +14%

🌐 Core Web Vitals — 🟢 good · 🟡 needs improvement · 🔴 poor (web.dev thresholds)

• 🟡 assetDetails/INP: p75 216ms
• 🟡 assetDetails/FCP: p75 2.5s
• 🟡 solanaAssetDetails/FCP: p75 2.5s
• 🟡 importSrpHome/INP: p75 224ms
• 🟡 importSrpHome/FCP: p75 2.6s
• 🟡 sendTransactions/FCP: p75 2.4s
• 🟡 swap/FCP: p75 2.4s

Dapp page load benchmarks: data not available.

Bundle size diffs

• background: 58 Bytes (0%)
• ui: 259 Bytes (0%)
• common: 20 Bytes (0%)

[smgv]

LGTM!