--- title: "Mobile FIRST – Chrome extensions from this developer" description: "1 Chrome extension from the publisher account of Mobile FIRST, with 1,000,000 users in all." url: "https://extensiontracker.com/developer/ufdb93bf98d1a2916151b955f66f82f20" --- # Mobile FIRST - Extensions: 1 - Users in all: 1,000,000 - First published: 2020-05-05 - Publisher account: `ufdb93bf98d1a2916151b955f66f82f20` Extensions are grouped by the store's own publisher account ID, so a developer who uses several accounts appears on several pages. Live extensions come first, most users first. | Extension | Category | Users | Rating | Updated | Status | | --- | --- | ---: | ---: | --- | --- | | [Mobile Simulator – Responsive Testing Tool](https://extensiontracker.com/extension/ckejmhbmlajgoklhgbapkiccekfoccmk) | Developer Tools | 1,000,000 | 4.93 | 2026-11-06 | Live | ## Moved here from other accounts Extensions that came to this account from another publisher account, newest first. | Date | Extension | From | Users | | --- | --- | --- | ---: | | 2026-10-20 | [Mobile Simulator – Responsive Testing Tool](https://extensiontracker.com/extension/ckejmhbmlajgoklhgbapkiccekfoccmk) | [François Duprat](https://extensiontracker.com/developer/u6e34d5e830fecb06af3295893410ed36) | 1,000,000 | ## Other accounts with the same contact email Publisher accounts whose extensions show the same contact email as this account's latest check. We know emails only by a keyed hash, so they're never shown. | Account | Extensions | | --- | ---: | | [François Duprat](https://extensiontracker.com/developer/uf65b22e4d737fc4727bf2b60a9dfc122) | 2 | --- From Extension Tracker, a public record of the Chrome Web Store: . It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (), crediting Extension Tracker. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.