fix: handle missing nonce cases in tx notif and history for 7702 cp-13.29.0

[maxime-oe]

Description

On Tempo - but also for all transactions using EIP-7702 on other chains - no nonce is stored in the transaction metadata, causing UI glitches in various places:

• Transaction confirmation notification showing "Transaction NaN Confirmed!"
• Empty "nonce" section in the tx activity modal.

This PR solves both of those issues, for Tempo and other chains leveraging EIP-7702 (gasless).

Changelog

CHANGELOG entry: remove the nonce line from tx activity popin when nonce is missing.
CHANGELOG entry: remove the nonce from tx success/failure messages when nonce is missing.

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/NEB-928?atlOrigin=eyJpIjoiOTIxMjA2ZDUzMjQwNGY1ZWJmNDRlNjJmNmQ0NGU3MjIiLCJwIjoiaiJ9

Manual testing steps

0. Make sure notifications are enabled for when a tx is confirmed.
1. You can perform any tx from Extension on Tempo (as long as you don't use a Hardware Wallet) to generate an activity in the Activity tab.
2. Observe "Transaction Confirmed" notification (vs. "Transaction NaN confirmed" before)
3. Click on the successful tx on Activity tab
4. Observe absence of any nonce line (vs. empty "nonce" field before).

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: changes only adjust user-facing notification/transaction breakdown messaging when nonce is missing, with added test coverage and no impact to signing, state, or network logic.

Overview
Prevents NaN/empty nonce display for nonce-less (e.g. EIP-7702) transactions.

Extension transaction success/failure notifications now switch to new i18n strings when txParams.nonce is absent, and the transaction breakdown UI hides the nonce row entirely in that case. Tests were expanded to cover both nonce-present and nonce-missing scenarios.

^{Reviewed by Cursor Bugbot for commit 230a9e5. Bugbot is set up for automated code reviews on this repo. 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.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

^{❌ Bugbot Autofix is OFF. To automatically fix reported issues with cloud agents, have a team admin enable autofix in the Cursor dashboard.}

^{Reviewed by Cursor Bugbot for commit 7e92470. Configure here.}

[metamaskbotv2]

Builds ready [b9369e0]

• 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
• bundle analyzer: Bundle Analyzer
• interaction-benchmark: Interaction Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts

⚡ Performance Benchmarks (Total: 🟢 7 pass · 🟡 8 warn · 🔴 0 fail)

Baseline (latest main): 71bd826 | Date: 10/14/58243 | Pipeline: 24677321796 | Baseline logs

Interaction Benchmarks · Samples: 5

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

📈 Results compared to the previous 5 runs on main

• ↓ loadNewAccount/load_new_account: -74%
• ↓ loadNewAccount/total: -74%
• ↓ bridgeUserActions/bridge_load_page: -20%
• ↓ bridgeUserActions/bridge_load_asset_picker: -23%
• ↓ bridgeUserActions/bridge_search_token: -29%
• ↓ bridgeUserActions/total: -28%

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

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

Startup Benchmarks · Samples: 100

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

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/uiStartup: -25%
• ↓ startupStandardHome/load: -15%
• ↓ startupStandardHome/domContentLoaded: -17%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/loadScripts: -19%
• ↑ startupStandardHome/setupStore: +14%
• ↓ startupStandardHome/numNetworkReqs: -37%
• ↓ startupStandardHome/uiStartup: -19%
• ↓ startupStandardHome/load: -15%
• ↓ startupStandardHome/domContentLoaded: -14%
• ↓ startupStandardHome/firstPaint: -26%
• ↓ startupStandardHome/backgroundConnect: -37%
• ↓ startupStandardHome/firstReactRender: -23%
• ↓ startupStandardHome/loadScripts: -14%
• ↓ startupStandardHome/numNetworkReqs: -44%
• ↓ startupStandardHome/uiStartup: -14%
• ↓ startupStandardHome/domInteractive: -58%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/setupStore: -17%
• ↓ startupStandardHome/numNetworkReqs: -34%
• ↓ startupStandardHome/uiStartup: -13%
• ↓ startupStandardHome/domInteractive: -51%
• ↓ startupStandardHome/initialActions: -43%
• ↓ startupStandardHome/setupStore: -57%
• ↓ startupStandardHome/numNetworkReqs: -34%

User Journey Benchmarks · Samples: 5 · mock API

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/srpButtonToSrpForm: -85%
• ↓ onboardingImportWallet/confirmSrpToPwForm: -12%
• ↓ onboardingImportWallet/metricsToWalletReadyScreen: -38%
• ↓ onboardingImportWallet/doneButtonToHomeScreen: -76%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +17%
• ↓ onboardingImportWallet/total: -44%
• ↓ onboardingNewWallet/srpButtonToPwForm: -76%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -68%
• ↓ onboardingNewWallet/doneButtonToAssetList: -22%
• ↓ onboardingNewWallet/total: -24%
• ↓ assetDetails/assetClickToPriceChart: -84%
• ↓ assetDetails/total: -84%
• ↓ solanaAssetDetails/assetClickToPriceChart: -71%
• ↓ solanaAssetDetails/total: -71%
• ↓ importSrpHome/loginToHomeScreen: -13%
• ↓ importSrpHome/openAccountMenuAfterLogin: -84%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -68%
• ↓ importSrpHome/total: -60%
• ↑ sendTransactions/openSendPageFromHome: +32%
• ↓ sendTransactions/selectTokenToSendFormLoaded: -35%
• ↑ sendTransactions/reviewTransactionToConfirmationPage: +32%
• ↑ sendTransactions/total: +30%
• ↓ swap/openSwapPageFromHome: -97%
• ↑ swap/fetchAndDisplaySwapQuotes: +31%
• ↑ swap/total: +10%

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

• 🟡 assetDetails/FCP: p75 2.5s
• 🟡 solanaAssetDetails/FCP: p75 2.5s
• 🟡 importSrpHome/FCP: p75 2.5s
• 🟡 sendTransactions/FCP: p75 2.0s
• 🟡 swap/FCP: p75 2.1s

Dapp Page Load Benchmarks · Samples: 100

Benchmark	chrome-browserify
dappPageLoad	🟢 [Show logs]

Bundle size diffs

• background: 58 Bytes (0%)
• ui: -111 Bytes (0%)
• common: 537 Bytes (0%)

[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 [230a9e5]

• ⚠️ Make sure the build is safe before downloading and running this build.
  • Please do not use these builds with accounts that contain significant real money.
  • Beware the security risks of cache poisoning.
• 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
• bundle analyzer: Bundle Analyzer
• interaction-benchmark: Interaction Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts

⚡ Performance Benchmarks (Total: 🟢 7 pass · 🟡 8 warn · 🔴 0 fail)

Baseline (latest main): 71bd826 | Date: 10/14/58243 | Pipeline: 24680410788 | Baseline logs

Interaction Benchmarks · Samples: 5

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

📈 Results compared to the previous 5 runs on main

• ↓ loadNewAccount/load_new_account: -77%
• ↓ loadNewAccount/total: -77%
• ↓ bridgeUserActions/bridge_load_page: -35%
• ↓ bridgeUserActions/bridge_load_asset_picker: -74%
• ↓ bridgeUserActions/bridge_search_token: -30%
• ↓ bridgeUserActions/total: -42%

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

• 🟡 loadNewAccount/FCP: p75 2.0s
• 🟡 confirmTx/FCP: p75 2.0s
• 🟡 bridgeUserActions/FCP: p75 2.0s

Startup Benchmarks · Samples: 100

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

📈 Results compared to the previous 5 runs on main

• ↓ startupStandardHome/uiStartup: -21%
• ↓ startupStandardHome/load: -10%
• ↓ startupStandardHome/domContentLoaded: -12%
• ↑ startupStandardHome/domInteractive: +13%
• ↓ startupStandardHome/firstReactRender: -10%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/loadScripts: -15%
• ↓ startupStandardHome/numNetworkReqs: -37%
• ↓ startupStandardHome/uiStartup: -20%
• ↓ startupStandardHome/load: -14%
• ↓ startupStandardHome/domContentLoaded: -14%
• ↑ startupStandardHome/firstPaint: +18%
• ↓ startupStandardHome/backgroundConnect: -34%
• ↓ startupStandardHome/firstReactRender: -30%
• ↓ startupStandardHome/loadScripts: -14%
• ↓ startupStandardHome/setupStore: -13%
• ↓ startupStandardHome/numNetworkReqs: -44%
• ↓ startupStandardHome/uiStartup: -13%
• ↓ startupStandardHome/domInteractive: -58%
• ↑ startupStandardHome/backgroundConnect: +11%
• ↓ startupStandardHome/initialActions: -33%
• ↓ startupStandardHome/numNetworkReqs: -34%
• ↓ startupStandardHome/uiStartup: -20%
• ↓ startupStandardHome/load: -13%
• ↓ startupStandardHome/domContentLoaded: -13%
• ↓ startupStandardHome/domInteractive: -59%
• ↓ startupStandardHome/backgroundConnect: -11%
• ↓ startupStandardHome/initialActions: -43%
• ↓ startupStandardHome/loadScripts: -13%
• ↓ startupStandardHome/setupStore: -57%
• ↓ startupStandardHome/numNetworkReqs: -34%

User Journey Benchmarks · Samples: 5 · mock API

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/srpButtonToSrpForm: -84%
• ↓ onboardingImportWallet/metricsToWalletReadyScreen: -37%
• ↓ onboardingImportWallet/doneButtonToHomeScreen: -77%
• ↑ onboardingImportWallet/openAccountMenuToAccountListLoaded: +27%
• ↓ onboardingImportWallet/total: -44%
• ↓ onboardingNewWallet/srpButtonToPwForm: -77%
• ↓ onboardingNewWallet/skipBackupToMetricsScreen: -69%
• ↓ onboardingNewWallet/doneButtonToAssetList: -35%
• ↓ onboardingNewWallet/total: -35%
• ↓ assetDetails/assetClickToPriceChart: -77%
• ↓ assetDetails/total: -77%
• ↓ solanaAssetDetails/assetClickToPriceChart: -68%
• ↓ solanaAssetDetails/total: -68%
• ↓ importSrpHome/loginToHomeScreen: -13%
• ↓ importSrpHome/openAccountMenuAfterLogin: -60%
• ↓ importSrpHome/homeAfterImportWithNewWallet: -65%
• ↓ importSrpHome/total: -58%
• ↑ sendTransactions/reviewTransactionToConfirmationPage: +37%
• ↑ sendTransactions/total: +35%
• ↓ swap/openSwapPageFromHome: -97%
• ↑ swap/fetchAndDisplaySwapQuotes: +31%
• ↑ swap/total: +11%

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

• 🟡 assetDetails/FCP: p75 2.4s
• 🟡 solanaAssetDetails/FCP: p75 2.4s
• 🟡 importSrpHome/FCP: p75 2.6s
• 🟡 sendTransactions/FCP: p75 2.5s
• 🟡 swap/FCP: p75 2.4s

Dapp Page Load Benchmarks · Samples: 100

Benchmark	chrome-browserify
dappPageLoad	🟢 [Show logs]

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

• background: 2.82 KiB (0.05%)
• ui: 112 Bytes (0%)
• common: 570 Bytes (0%)

[nikolastoimenovski-consensys]

Tested on Chrome and Firefox with and without HW, works as expected on Send, Swap, Bridge (using dapp), Tempo batch trx using test dapp. Feedback:

• without HW, the "nonce" field is not shown

• with HW, the "nonce" field is shown and it is populated

Also the "Transaction Confirmed" browser notification appears as expected.

[Julink-eth]

LGTM