During the beta, Prospector is not yet in the Chrome Web Store, so you install it from a folder instead. "Developer mode" is just the switch that allows that. Nothing about it is risky for a tool your team is giving you, and you can remove it anytime from the same page.
Part 1 · Install the extension
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Unzip the file we sent you
Find mmp-prospector-chrome-extension.zip in your Downloads, then unzip it.
On Mac: double-click the zip.On Windows: right-click and choose Extract All.Keep the folder somewhere permanent. Chrome reads the extension from this folder, so do not delete or move it after installing. -
Open Chrome's extensions page
Click the address bar, type the line below, and press Enter.
chrome://extensions -
Turn on Developer mode
In the top-right corner of that page, flip the Developer mode switch on. A new row of buttons appears.
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Click "Load unpacked" and pick the folder
Press Load unpacked at the top-left, then select the mmp-prospector-chrome-extension folder you unzipped.
Pick the folder itself, not a file inside it. If you see files likemanifest.jsonlisted, you are one level too deep. Go up one and choose the folder. -
Pin it to your toolbar
Click the puzzle-piece icon near the top-right of Chrome, find MMP Prospector, and click the pin so its icon sits in your toolbar.
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Open the panel and connect
Click the Prospector icon to open the side panel. It will ask for a key.
Sign in to My Marketing Pro in another tab.Open /extensions/prospector/extension-connect.php, click Generate key, then Copy key.Paste the key into the panel and click Connect. -
Allow your microphone (only if you make calls)
Calls happen inside Chrome, so it needs microphone permission once. In Settings, click Enable microphone and choose Allow when Chrome asks.
Part 2 · Your founder-led setup
Installing the panel is the easy part. The reason Prospector works on day one is the setup we do with you. For a limited time, every subscription includes a personal, founder-led session that gets all of this live and teaches you to run it.
Provision your phone number
We set up a dedicated number for your calls and texts, registered and ready to use.
Route texts and calls
Inbound and outbound routing is wired so replies reach you and nothing slips through.
Set up ringless voicemail
We configure and test ringless voicemail so you can drop a message without ringing the phone.
Stand up your AI voice agent
Your conversational AI voice agent is set up with a voice and script tuned to how you sell.
Troubleshooting
Chrome says the manifest is missing or invalid
mmp-prospector-chrome-extension folder that directly contains manifest.json, not a parent folder and not a file.The extension disappeared after I restarted my computer
The panel will not connect with my key
Calls say my microphone is blocked
chrome://settings/content/microphone.How do I update to a new beta build
chrome://extensions and click the refresh icon on the Prospector tile. Your connection and settings carry over.Stuck on any step?
That is what founder-led setup is for. We will get you live together.
Book your setup session