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Test on Mozilla Firefox 33

Perform real time live interactive testing of your webapp, website for cross browser compatibility on the latest Mozilla Firefox version 33. You can test your web application for functionality, visual bugs, and a lot more by performing cross browser testing.

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free browser compatibility testing on Mozilla Firefox 33 online

33

ELEMENTS NOT SUPPORTED IN MOZILLA FIREFOX 33 BROWSER

CSS background-repeat round and space

Allows CSS background images to be repeated without clipping.

CSS font-variant-alternates

Controls the usage of alternate glyphs associated to alternative names defined in @font-feature-values for certain types of OpenType fonts.

CSS3 font-kerning

Controls the usage of the kerning information (spacing between letters) stored in the font. Note that this only affects OpenType fonts with kerning information, it has no effect on other fonts.

display: flow-root

The element generates a block container box, and lays out its contents using flow layout. It always establishes a new block formatting context for its contents. It provides a better solution to the most use cases of the "clearfix" hack.

HTML Imports

Method of including and reusing HTML documents in other HTML documents.

Dialog element

Method of easily creating custom dialog boxes to display to the user with modal or non-modal options. Also includes a ::backdrop pseudo-element for behind the element.

Picture element

A responsive images method to control which image resource a user agent presents to a user, based on resolution, media query and/or support for a particular image format

Custom Elements v0

Method of defining new HTML tags.

inputmode attribute

The inputmode attribute specifies what kind of input mechanism would be most helpful for users entering content into the form 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.

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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