Install, filter reference, and what to do when something looks wrong.
The extension is distributed directly rather than through the Chrome Web Store, so installation is one extra step. It takes about a minute and you only do it once.
chrome://extensions.manifest.json.Chrome may show a "Disable developer mode extensions" prompt on startup. Dismissing it is safe — the extension keeps working.
Results save continuously, so a refresh or a crash mid-run loses nothing. Stop halts the run and keeps what it has. Clear wipes the stored set — do that between unrelated searches, or the results merge.
Reads the list, then opens only the listings missing a phone or website. The default, and the right choice most of the time.
Opens every listing. Slower — about three seconds each — but the only mode that gets full addresses, postcodes and seven-day opening hours, because list cards never contain them.
No listing visits at all. Fastest, but addresses are partial and the unclaimed filter cannot work.
Filters are applied while results are collected, not afterwards. That matters: a rejected business is never opened, so it costs no time and none of your daily allowance.
Two filters need a listing visit and therefore do not work in List-only mode: Unclaimed listings and Has an email. A location filter is also more accurate with visits, because a results card usually shows only a street, not the town.
Likely new is an estimate. Google Maps publishes no opening date anywhere, so this filter uses a low review count or Google's own New badge. Treat it as a strong hint, not a fact.
Exclude chains drops any business sharing a website domain or an exact name with more than N others in your results. Set N to 1 to keep only genuinely independent businesses.
Stop after N caps a run at N businesses that passed your filters. Scrolling and listing visits both stop early, so a small cap really is fast.
A listing counts once, on the day you first keep it. Specifically:
Limits reset at midnight UTC. The panel shows what you have left.
Google Maps never exposes email addresses. If you want them, enable email lookup from the extension popup and grant website access. The extension then visits each business's own site — the homepage, /contact, /contact-us and /about — and pulls contact addresses.
Requests are sent without cookies, so a site you are signed in to cannot return your own account details instead of the business's. You can also add your own addresses to a blocklist in the popup, which strips them from every export.