- Download the runtime
- Unzip file and load the directory as an unpacked extension in Chrome
- Go to Extensions in Chrome and enable Developer mode. Press Load unpacked extensions… button and choose the unzipped directory
- Download gReader Chrome extension
- Unzip file and load the directory as an unpacked extension in Chrome
- Click on Launch to load gReader.
Source: Run gReader on ChromeOS or Chrome in Windows, MacOSX and Linux - noinnion