1) Visit the RoboForm download page: https://www.roboform.com/download and go to either the Linux or Chrome OS tab. Click the Download button next to "RoboForm for Chrome standalone extension."
2) You will be redirected to the Chrome Store. Click "Add to Chrome" in the upper right corner.
3) A pop up dialog will appear asking whether to add RoboForm Password Manager. Click the "Add extension" button.
4) A notification will pop up in the upper right corner confirming the addition of the RoboForm extension to Chrome. You can now access RoboForm by clicking the RoboForm extension.