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Contact
One address for all four tools — support, billing, privacy and everything else.
MurmTools is built by one person in the Netherlands. There is no helpdesk, no ticket number and no chatbot in front of the inbox, which is the good news and the bad news: your message is read by the person who wrote the code, and there is only one of him.
The address is [email protected]. It is the same address on every privacy policy, in the Chrome Web Store listings and in llms.txt. There is no second one.
What to send it
| Subject | What helps |
|---|---|
| A tool got something wrong | The URL you were on, which extension and its version number (Chrome → Extensions → Details), and what you expected instead. A screenshot of the panel is worth more than a description of it. |
| A tool did nothing at all | Same three things. If MurmSpy showed nothing on a store, say whether the
address ended in .myshopify.com or was a custom domain — on a
custom domain it only runs after you click the toolbar icon, and that is the
most common cause. |
| Billing, refunds, a Pro licence that will not activate | The email address you paid with. Payments run through Stripe via ExtensionPay, so a refund is theirs to process and mine to ask for — see the pricing page for what each tier includes. |
| A privacy question, or a data request under the GDPR | Say which extension. The honest answer is usually short: none of them has a server, so there is no account, no profile and nothing held about you to export or erase. The policies below say so in detail. |
| A wrong company name, or a missing one | The domain. MurmStack maps domains to parent companies from a list shipped inside the extension, and a bad row there is a bug like any other. |
| Press, research, or a use of the Consent Gap data | Nothing in particular — the raw data is CC BY 4.0 and needs no permission. Mail is welcome anyway. |
What to expect
Most mail gets a reply inside two working days, and everything gets one inside a week. That is a description of how the inbox has actually behaved, not a service level agreement, and it is written here rather than as “we aim to respond promptly” because a promise you can check is worth more than one you cannot.
Two things that will make it slower and are worth knowing in advance. A bug that needs a reproduction on a live storefront takes as long as finding a storefront that still reproduces it. And office hours are European — a message sent on Friday evening is read on Monday.
If a week passes with nothing, send it again. Gmail's spam filter is not under my control, and a resent message is never an annoyance.
What this address is not
- It is not a way to have a figure changed. Where a tool prints a refusal — Shopify revenue, units sold, what a page earns from its links — no message unlocks it, because the number was never computed. Those refusals are the product, not a limitation of your tier.
- It is not legal advice. MurmStack and MurmProof report timings and distances. Whether a given banner or disclosure complies with a given law is a question for someone qualified to answer it.
- It is not a list. Writing to it does not subscribe you to anything. There is no newsletter to be added to.
Privacy policies
Each extension has its own, and each carries this same address at the bottom: