Full Screen APIs

Summary

• This feature enables developers to make an arbitrary HTML element "full-screen", hiding the browser's UI and stretching the element to encompass the entire screen
• Useful for HTML5 video and games.
• This feature is available starting Firefox 10

Reference

• Design and infrastructure:
  • Bug 545812 - API for controlling fullscreen from content

Use Cases to Test

Basic Functional Testing

• Open the demo page and check if HTML elements can go in full screen mode.

Edge Cases

• Also, the elements should run without problems in full screen mode if:
  • Multiple tabs are loaded
  • Multiple browser windows are available
  • Heavy user profile is loaded (large history, multiple bookmarks, user settings, tabs, add-ons)
  • Private browsing is on
  • Firefox is already in fullscreen mode

• Panorama mode should work properly if HTML elements are in fullscren mode

Test Cases

• A list of test cases for this feature can be found here: Test Cases

Important bugs

• Bug 545812 - API for controlling fullscreen from content
• Bug 684625 - Display a warning when DOM full-screen mode entered or restricted key pressed
• Bug 685402 - Change tab/navigate should exit DOM full-screen mode
• Bug 691583 - Dispatch event when restricted key input occurs in DOM full-screen mode
• Bug 684628 - Transition effect when moving to DOM full-screen mode
• Bug 708174 - Transition into fullscreen mode is yucky