I ran into some problems with my AMD drivers, and during my hassle I purged `compiz` (and packages it depends on) and then I reinstalled the packages `compiz` and `ubuntu-desktop`. That made my Firefox installation to ask whether I want to install a web app when I visit a compatible site, at least I think so. However, the web apps don't seem to install. And I'm not sure which specific package that you need to reinstall, I'm neither sure if I messed something up (like removed or installed too many packages).
I ran into some problems with my AMD drivers, and during my hassle I purged `compiz` (and packages it depends on) and then I reinstalled the packages `compiz` and `ubuntu-desktop`. That made my Firefox installation to ask whether I want to install a web app when I visit a compatible site, at least I think so. However, the web apps don't seem to install. And I'm not sure which specific package that you need to reinstall, I'm neither sure if I messed something up (like removed or installed too many packages).