Test on Mozilla Firefox 57
Perform real time live interactive testing of your webapp, website for cross browser compatibility on the latest Mozilla Firefox version 57. You can test your web application for functionality, visual bugs, and a lot more by performing cross browser testing.
ELEMENTS NOT SUPPORTED IN FIREFOX 57 BROWSER
Proprietary and undocumented CSS property that will contain text to a given amount of lines when used in combination with display: -webkit-box. It will end with ellipsis when text-overflow: ellipsis is included.
Explicit descendant combinator >>
An explicit, non-whitespace spelling of the descendant combinator. A >> B is equivalent to A B.
Media Queries: interaction media features
Allows a media query to be set based on the presence and accuracy of the user's pointing device, and whether they have the ability to hover over elements on the page. This includes the pointer, any-pointer, hover, and any-hover media features.
selector list argument of :nth-child and :nth-last-child CSS pseudo-classes
The newest versions of :nth-child() and :nth-last-child() accept an optional of S clause which filters the children to only those which match the selector list S. For example, :nth-child(1 of .foo) selects the first child among the children that have the foo class (ignoring any non-foo children which precede that child). Similar to :nth-of-type, but for arbitrary selectors instead of only type selectors.
Method of displaying a reflection of an element
prefers-reduced-motion media query
CSS media query based on a user preference for preferring reduced motion (animation, etc).
The inputmode attribute specifies what kind of input mechanism would be most helpful for users entering content into the form control.
HTML Media Capture
Facilitates user access to a device's media capture mechanism, such as a camera, or microphone, from within a file upload control.
seamless attribute for iframes
The seamless attribute makes an iframe's contents actually part of a page, and adopts the styles from its hosting page. The attribute has been removed from both the WHATWG and the W3C HTML5 specifications.
Method of specifying and selecting between multiple video tracks. Useful for providing sign language tracks, burnt-in captions or subtitles, alternative camera angles, etc.
Information sourced from
"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.
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