The File.lastModifiedDate read-only property returns the last modified date of the file. Files without a known last modified date returns the current date .
The HTMLTableElement.bgcolor property represents the background color of the table.
The HTMLTableElement.border property represents the border width of the table element.
The NavigatorID.taintEnabled() method always returns false.
The register method is used to ask the system to request a new endpoint for notifications. This method has been superceded by PushManager.subscribe().
The registrations method is used to ask the system about existing push endpoint registrations.
The unregister() method was used to ask the system to unregister and delete the specified endpoint. In the updated API, a subscription is can be unregistered via the PushSubscription.unsubscribe() method.
document.load() is a part of an old version of the W3C DOM Level 3 Load & Save module. Can be used with document.async to indicate whether the request is synchronous or asynchronous (the default). As of at least Gecko 1.9, this no longer supports cross-site loading of documents (Use XMLHttpRequest instead).
The deprecated compile() method is used to (re-)compile a regular expression during execution of a script. It is basically the same as the RegExp constructor.