The Chrome browser has limitations that only allow users to "prompt" one of the wallets if both are installed. By default, it will access Core.
To use both Core and MetaMask is as simple as clicking a new profile in Chrome and having one of the wallets live in that other profile. This still allows the users to use both without having to log in and out or switch to other browsers.
Create a Chrome profile
1. In Chrome, click on the profile icon at the top right of the browser.
2. Under the People section, click + Add person.
3. For simplicity one can select "Continue without an account".
4. Install one of the extensions on this profile.
Now it's as simple as switching profiles with one click to use either browser simultaneously on a device.
For any additional questions, please view our other knowledge base articles or contact a support team member via the chat button.