Firefox OS Performance: Responsiveness

Mozilla's program for advancing Firefox OS responsiveness and perceived performance.

Eli Perelman, :Eli

Application Startup

Stage	Description
App Chrome Visible	The wireframe of the application is visible, e.g. headers, footers, or navigation elements.
App Content Visible	The initial 'above-the-fold' content is displayed and has completed rendering.
App Interaction Ready	The core subset of user interaction is ready to be performed, e.g. scrolling, navigation.
App Content Ready	The entire application has its remaining content loaded and ready for interaction.

App Cold Launch
Speed	Action
0 - 140ms	App's icon shows it has been touched.
0 - 1.0s	App's launch animation is started and completed.
0 - 1.0s	App's wireframe, e.g. banner and controls, are loaded and visible.
0 - 1.0s	App's visible content or a loading indicator must be displayed.
0 - 1.25s	App is ready for user interactions, e.g. touch, scroll, etc.

The above times are cumulative, so app icon touch to app interaction ready is expected to occur within 1.25s.