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This extension is no longer available on the Chrome Web Store. We noticed it was gone on Sep 16, 2025.
{
"update_url": "https:\/\/clients2.google.com\/service\/update2\/crx",
"manifest_version": 3,
"name": "Performance Observer Extension",
"version": "1.0",
"description": "Monitor web performance metrics using PerformanceObserver.",
"permissions": [
"tabs",
"storage",
"activeTab",
"scripting"
],
"background": {
"service_worker": "background.js"
},
"action": {
"default_popup": "popup.html"
},
"content_security_policy": {
"extension_pages": "default-src 'self';"
},
"icons": {
"128": "logo.png"
}
}
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