Violentmonkey provides userscripts support for browsers. It works on browsers with WebExtensions support.
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Webextensions GitHub Repositories (2026) · Open Source Tools
Discover the best Webextensions open source repositories on GitHub. Explore trending tools, live star counts, source code, and developer projects updated daily.
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4 matching projects · updated Oct 13, 2026
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A command line tool to help build, run, and test web extensions
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An awesome browser extension that reads aloud webpage content with one click
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Firefox/Chrome Extension to provide bullet chatting (Danmaku) on YouTube Live, like niconico or bilibili.
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