![]() However, because Firefox doesn't currently suport multiple audio and video tracks, the most common use cases for these properties don't work, so they're both disabled by default. HTMLMediaElement properties: audioTracks and videoTracksĮnabling this feature adds the dioTracks and Tracks properties to all HTML media elements. tSinkId() allows you to set the sink ID of an audio output device on an HTMLMediaElement, thereby changing where the audio is being output. The global beforeinput event is sent to an element-or any element whose contenteditable attribute is enabled-immediately before the element's value changes. See bug 1602129 for our progress on this API. The specification is still a work-in-progress. This new API provides low-level support for performing computation and graphics rendering using the Graphics Processing Unit (GPU) of the user's device or computer. Currently, there are no WebGL extensions being tested by Firefox. When this preference is enabled, any WebGL extensions currently in "draft" status which are being tested are enabled for use. The hit region API allows you define an area of your canvas and provides another possibility to expose interactive content on a canvas to accessibility tools. Whether the mouse coordinates are within a particular area on the canvas is a common problem to solve. It is available in both the window and worker contexts. The OffscreenCanvas interface provides a canvas that can be rendered offscreen. Release channelĪPIs Graphics: Canvas, WebGL, and WebGPU Interface: OffscreenCanvas The prefers-contrast media feature is used to detect whether the user has specified a preference for higher (or lower) contrast in the presentation of web content. This allows to create gallery style layouts like on Pinterest. Release channelĪdds support for a masonry style layout based on grid layout where one axis has a masonry layout while having normal grid layout on the other. ![]() The backdrop-filter property applies filter effects to the area behind an element. Support for using a single as a when specifying the aspect ratio for a media query. Single numbers as aspect ratio in media queries when tabbing between elements), and not when they are focused using a mouse or other pointing device. and Īllows focus styles to be applied to elements like buttons and form controls, only when they are focused using the keyboard (e.g. Release channelĬonic gradients expand CSS gradients to allow the color transitions to be rendered circling around a center point rather than radiating from it. The initial-letter CSS property is part of the CSS Inline Layout specification and allows you to specify how dropped, raised, and sunken initial letters are displayed. This feature renders control characters (Unicode category Cc) other than tab ( U+0009), line feed ( U+000A), form feed ( U+000C), and carriage return ( U+000D) as a hexbox when they are not expected. Release channelĬSS Display stray control characters in CSS as hex boxes For more details on the status of this feature, see bug 1639607. ![]() Read Preloading content with rel="preload" for more details. The element's rel attribute is intended to help provide performance gains by letting you download resources earlier in the page lifecycle, ensuring that they're available earlier and are less likely to block page rendering. Our implementation of the inputmode global attribute has been updated as per the WHATWG spec ( bug 1509527), but we still need to make other changes too, like making it available on contenteditable content. ![]() The current implementation is a little inelegant but is basically functional. The HTML element and its associated DOM APIs provide support for HTML-based modal dialog boxes. Editor's note: When adding features to these tables, please try to include a link to the relevant bug or bugs using the bug macro.
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