Step 1: Extract the extension
Right click on the downloaded zip file and choose Extract All option. Select a file destination and extract the contents there.
Step 2: Enable Developer Mode in Chrome
Open the Extensions page in your Chrome. In the top right corner of your browser, click More > More tools > Extensions, or just type in chrome://extensions/ into your address bar. Then, turn on Developer mode switch in the top right corner.
Step 3: Load extension into Chrome
Locate the unzipped extension folder that contains manifest.json file. Drag and drop the folder anywhere onto the Extensions Chrome page to install.
Step 4: Pin the extension
Click the extension puzzle icon next to the address bar and pin the Hireplusplus Smart Save extension.