EditThisCookie Got Removed — So I Built a Modern Cookie Editor for Chrome

If you've ever worked with cookies during web development, you probably used EditThisCookie. It was the go-to Chrome extension for inspecting, editing, and deleting cookies. Over 3 million users relied on it daily. Then one day, it vanished from the Chrome Web Store. Google pulled it because it was still running on Manifest V2 — the old extension platform that Chrome has been phasing out since 2023. The situation got worse when copycat extensions appeared, some of which turned out to contain malware. The developer community was left scrambling for a trustworthy replacement. I was one of those developers who depended on EditThisCookie for everyday work. After trying several alternatives and finding them lacking, I decided to build my own. The result is CookieJar — a Manifest V3 cookie manager designed from the ground up for how developers actually work with cookies in 2026. This article walks through five real-world use cases where CookieJar saves time, and explains how its privacy scor