demo · v133

initial_preferences JSON builder

Pick the URLs that should open on first run, the home page, and the startup behaviour. The output is a ready-to-deploy initial_preferences file — with a live warning whenever you include the deprecated chrome://welcome string in first_run_tabs.

first_run_tabs (one URL per line)

homepage

restore_on_startup

restore_on_startup_urls (one per line)

…

warning: chrome://welcome in first_run_tabs is silently ignored from Chrome 133. The First Run Experience covers this. Remove that line.

see also