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Firefox is a free and open source web browser developed by Mozilla Foundation. First released in 2002 under the name Phoenix. It's available for most operating systems including Windows, macOS, Linux and most phones and tablets.

🌐 🔌 The MetaMask browser extension enables browsing Ethereum blockchain enabled websites.

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JavaScript Updated May 25, 2019
Test suites for Web platform specs — including WHATWG, W3C, and others
HTML Updated May 26, 2019
Firefox Focus for iOS
Swift Updated May 4, 2019
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserv…
JavaScript Updated May 8, 2019
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