This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
Installs a packaged app.
installPackage: function(aURL[, aParams])
receipts: Will be used to specify the payment receipts for this installation.
categories: Will be used to specify the categories of the webapp.
- The URL of the app package to install. This must be a full, absolute URL.
- Optionally, an object with optional information: