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firefox-extension-dev
Reference knowledge base for Firefox WebExtension development. Contains browser API reference, manifest schema, AMO publishing guide, MDN URL index, and best practices. Used by the firefox-extension-dev agent for documentation lookup. TRIGGER WHEN: building, implementing, writing, coding, creating, debugging, or publishing a Firefox/WebExtension add-on (manifest.json, browser.* APIs, AMO submission, web-ext CLI). DO NOT TRIGGER WHEN: targeting Chrome-only extensions, Safari extensions, or userscripts/bookmarklets.
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