Every listing is a complete transfer: source code, store entry and the user base that comes with it. Prices are worked out from where the users actually live, and the whole calculation is published on the page rather than kept behind an email.
Each listing publishes the user count per country, the store rating and the full valuation working. Nothing is summarised into a single number you have to trust.
Source code review, a screen share of the developer dashboard, analytics history. Reasonable diligence requests are expected, not treated as an insult.
The money goes to the escrow provider, never to this site. It sits there until the handover is done and you have confirmed it.
The store listing moves to your developer account, the repository and assets are handed over, and support continues while you settle in.
Most private extension sales start with a number and no explanation, which means the first hour of every conversation is spent establishing whether the number is serious. That is a waste of both sides’ time.
Every listing here publishes the same three things: the user count broken down by country as exported from the developer dashboard, the weighting applied to each of those countries, and the arithmetic that turns them into a price. You can check it, and you can argue with it. Arguing with a specific input is a much better conversation than arguing with a number.
A full ownership transfer, not a licence and not a partnership. The source code, the store listing with its users and reviews, the assets, the translations, and the documentation to build and ship it yourself. Once escrow releases, there is no ongoing relationship except the support period.
Diligence is welcome. Ask for a live view of the dashboard, ask for read access to the source, ask why the growth curve looks the way it does. Any of those questions will get a straight answer.
In return there is one question in the other direction: what do you plan to do with it. Extensions with established user bases have a history of being bought and then quietly turned into advertising injectors, and that is not a transaction worth completing at any price. A buyer with a real plan finds this an easy question.
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In a browser extension sale neither side can go first without exposure. Escrow removes that problem entirely, and understanding how it works is what separates a clean deal from a bad story.
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Two extensions with identical install counts can differ fourfold in value. The variable that explains most of that gap is which countries the users are in, and it is measurable.
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Moving an extension to a new owner is the part of a sale that goes wrong most often. Here is the order the steps have to happen in, what breaks when you get it wrong, and how to protect both sides.