Firefox (browser)

Mozilla Firefox is an open-source web browser created by the Mozilla Foundation. It supports almost all of the common web standards in use today, and holds approximately 20% of the market share. Firefox is available for Windows, Mac OS X and Linux. Firefox uses the Gecko rendering engine.

Standards support
Firefox, as of version 3.0 supports the following standards:
 * HTML 4
 * CSS 2
 * SVG

Firefox also partially supports the following standards:
 * CSS 3

Test results
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