KOMMANDROS

Add the Kommandr Helper to Chrome

This little helper is what lets Kommandr post to Facebook Marketplace from your own browser. It's on the Chrome Web Store now, so it's one click — no folders, no developer mode, nothing to keep on your computer.

One click, straight from the Chrome Web Store

Add it to Chrome, sign in once, and you're done — Chrome keeps it updated on its own from here.

Add to Chrome — free
Works in Chrome, Edge, Brave and Arc.
Can't use the Chrome Web Store? Install it by hand instead

Some work computers block the Web Store. This does exactly the same thing — it just takes four steps instead of one. Note that a hand-installed copy does not auto-update, so you'll need to repeat this when we ship a new version.

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Kommandr OS Extension
Version 3.52.0 · Chrome & Edge · ~280 KB
⬇ Download
The manual install · 4 easy steps

Follow these in order — each one is a single click or switch. If you get stuck on any step, the Get Help link at the bottom connects you to a real person.

1
Download the file, then open it
Click Download above. When it lands in your Downloads, double-click it to unzip it — you'll get a folder called chrome-extension-latest. Drag that folder somewhere you'll keep it, like your Documentsfolder. (Chrome runs the extension straight from this folder, so if you delete it later the extension goes with it.)
2
Open Chrome's extensions page
Click the button below to copy the address, then paste it into Chrome's address bar (the long bar at the very top) and press Enter: This is Chrome's own page for managing add-ons. (Using Microsoft Edge instead? Use edge://extensions.)
3
Flip on “Developer mode”
On that page, find the switch labeled Developer mode in the top-right corner and turn it on. Don't let the name scare you — it just lets Chrome accept an add-on that isn't from the store yet. A small row of new buttons will appear.
4
Click “Load unpacked” and pick the folder
Click the new Load unpacked button, then choose the chrome-extension-latest folder you saved in step 1. That's it — Kommandr appears in your list of extensions. For easy access, click the little puzzle-piece icon near Chrome's address bar and pin Kommandr so it's always one click away.
✅ It connects itself

The moment you load it, Kommandr OS opens your dashboard and pairs the extension to your account — as long as you're signed in. No keys to copy, no setup. To add Facebook Marketplace, just visit it while logged in, click the extension, and hit Capture Session. (OfferUp doesn't use the extension — connect it in the app at Connect OfferUp with your email & password.)

How to connect Facebook & marketplaces →Go to my dashboard →

This is the official Kommandr OS extension, distributed directly to members while our Chrome Web Store listing is in review. Developer mode is Google's built-in, supported way to install it — the same method used by every developer building Chrome extensions.

Trouble installing?