To add an app in the dock of Pear OS 8, all you gotta do is open that app and in the dock bar you will have to right click the app icon then hit “Keep In Dock”. Your app will be kept in the dock for good. I had a hard time finding out how to do this myself. I thought I could do it from inside the Launchpad but it turns out that I can’t. Another thing you should consider doing is downloading Chrome from Official Google website itself. Chromium has issues such as if you switch tabs while watching a Youtube video and you return to that playing Youtube video you will see a black screen but hear video playing. Download the 64-bit Debian/Ubuntu Chrome from official Google Chrome download page.