Chrome Extensions can be either packed or unpacked.
- Packed extensions are a single file with a
.crxextension. - Unpacked extensions are a directory containing the extension, including a
manifest.jsonfile.
To pack an unpacked extension, use the Pack button in chrome://extensions or
use Chrome: "chrome.exe --pack-extension=C:\path\to\unpacked\extension --pack-extension-key=C:\myext.pem". To unpack a packed extension,
extract the file. You may need to rename the filetype from .crx to .zip for your
zip utility to recognize it.
Refer to the Extensions documentation for other ways to do this which are more automation friendly.
Install Extensions with ChromeDriver
Packed (.crx file)
ChromeOptions options = new ChromeOptions();
options.addExtensions(new File("/path/to/extension.crx"));
ChromeDriver driver = new ChromeDriver(options);
Unpacked (directory)
ChromeOptions options = new ChromeOptions();
options.addArguments("load-extension=/path/to/extension");
ChromeDriver driver = new ChromeDriver(options);

Formed in 2009, the Archive Team (not to be confused with the archive.org Archive-It Team) is a rogue archivist collective dedicated to saving copies of rapidly dying or deleted websites for the sake of history and digital heritage. The group is 100% composed of volunteers and interested parties, and has expanded into a large amount of related projects for saving online and digital history.
