BrowserRig: A Local Driver Plugin for Reusing Logged-In Chromium Sessions

BrowserRig is an open-source local browser automation plugin designed to address the pain point of reusing existing browser sessions in agent development. It connects to an already logged-in Chromium instance through a Chrome extension, reusing cookies, extensions, and login state without requiring the remote debugging port to be enabled. Its core features include session takeover, background execution, and integration with tools such as DeepSeek Harness. This solution avoids repeated popup confirmations and enables code-level execution control, making it particularly well suited for development and testing scenarios that require persistent login sessions or frequent window switching.