:: Developer Documentation Request Request Type: New Documentation Gecko Version: unspecified Technical Contact: :: Details I learned in a recent mozhacks article [1] that there is a Mozilla-specific moz-opaque attribute on canvas elements that affects performance. The bug says dev-doc-complete [2], but I can't find any article on MDN about it. The only relevant things is on the FFx 3.5 for developers page [3]. But nothing on the <canvas> element [4] or HTMLCanvasElement [5] (reflected as "mozOpaque" on the HTMLCanvasElement instances). [1] https://hacks.mozilla.org/2013/05/optimizing-your-javascript-game-for-firefox-os/ [2] https://bugzilla.mozilla.org/show_bug.cgi?id=430906 [3] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/3.5 [4] https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas [5] https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement

New page: https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement.mozOpaque Mentioned on/linked from: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/canvas https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement Other HTMLCanvasElement pages to be done. But this property should be fine for now.