How do I add a download manager to Chrome?
To do this, visit the Chrome Web Store and search for “IDM integration module.” Click on the “Add to Chrome” button to install the extension. You will see a pop-up window asking you to confirm the installation.
Why IDM extension is not showing in Chrome?
You need to check that "IDM Integration Module" extension is enabled (arrow 1 on the image). You need to allow extension to read data on all sites (arrow 2 on the image). If you use incognito mode in Chrome, you need to enable "Allow in incognito" checkbox (arrow 3 on the image).