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Firefox already has this bundled in the developer edition and installable as an option for the normal version, it's called WebIDE https://developer.mozilla.org/
by zspitzer 10y ago
Firefox already has this bundled in the developer edition and installable as an option for the normal version, it's called WebIDE https://developer.mozilla.org/en-US/docs/Tools/Valence https://developer.mozilla.org/en-US/docs/Tools/Valence