You can actually reuse a running instance and create a new context with this: https://chromedevtools.github.io/devtools-protocol/tot/Target/#method-createBrowse

You can actually reuse a running instance and create a new context with this: https://chromedevtools.github.io/devtools-protocol/tot/Target/#method-createBrowserContext https://chromedevtools.github.io/devtools-protocol/tot/Targe.... Issue is that most libraries don't have an API for this (not sure why), and that long-running Chrome instances can get to a quirky state + other issues. Certain parameters require you start Chrome with the right flags, so reusing a running Chrome process doesn't always work.