Description

This if block was added to allow us to easily toggle off the timestamp saving at an interval. (#24326)

enableMV3TimestampSave defaults to true in the preferences controller, but on first install of the extension, before the preferences controller has been initialized, it will be undefined.

We should ensure that this timestamp saving behaviour is able to occur on first install of the extension by only preventing it if enableMV3TimestampSave is explicitly false.

Manual testing steps

Repro broken:

1. On develop, put a console log inside the if block that this PR modifies
2. Build and install and start to use metamask. Notice that the console log does on occur.

Test fix:

1. On this branch, put a console log inside the if block that this PR modifies
2. Build and install and start to use metamask. Notice that the console log does occur.

Pre-merge author checklist

• I’ve followed MetaMask 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.