Indicates visually in status bar at bottom of browser the percentage of a page loaded, the amount loaded, and whether loading has stalled or terminated. I don't know whether this information is made available through an interface. Yes, in status bar. Allow the user to turn on and off automatic page refresh. Maintain consistent user agent behavior and default configurations between software releases.
Consistency is less important than accessibility and adoption of system conventions.
I've installed a number of releases and the config files have been consistent. 11.2 Allow the user to configure the graphical arrangement of user interface controls. 2.8 Provide a default keyboard configuration for frequently performed operations. For a selected link, provide information to help the user decide whether to follow the link. Indicate the row and column dimensions of a selected table.