Cookie Converter: How to Export, Import and Convert Cookies (Netscape ↔ JSON)
You moved a warmed-up account into an anti-detect browser, and it asks for the password again? The problem is almost always the format: the extension exported JSON, the tool expects cookies.txt, or the other way around. A cookie converter fixes this in a minute: paste the file into the cookie converter, pick the target format, import into the profile. Below are both formats, the full workflow, and the errors that kill sessions.
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