Re-running first run Chrome on OSX

If you want to have Chrome on OSX re-do its first time run, maybe to re-initialise everything, this is how

1. Quit Chrome
2. Quit Firefox
3. Delete the ~/Library/Application Support/Google/Chrome/First Run* file.
4. Restart Chrome.

If Firefox is running when you do this, it'll crash.

It doesn't import Firefox passwords.