I tried this locally by creating a new Chrome user profile and loading the extension as described above, and it seemed to work at a first glance (it loaded OK), but I assume no liability :-). Press 'Load unpacked extension.' and choose the version-number folder inside the desired extension folder. Go to chrome://extensions in the target Chrome browser and enable 'Developer mode' by the checkbox in the upper right. Choosing the most recent version directory should be fine. On my local system the hash for Adblock was cfhdojbkjhnklbpkdaibdccddilifddb (this is probably globally unique, but just check), and then there were versioned subfolders. It should be fairly obvious which hash corresponds to which extension upon inspection, but you can often find a readme.txt, or a messages.json file in a _locales sudfolder, from which you can identify the extension. You should find it in eitherĬhrome user data directory → Default → Extensions →

Locate the extension folder from an existing installation.

One password google chrome extension