chrome crx3 extensions
- https://www.chromium.org/crx2-deprecation
- https://developer.chrome.com/extensions/linux_hosting
- unpack crx files: https://github.com/gromnitsky/crx3-utils
- getcrx to download chrome extension files: https://chrome.google.com/webstore/detail/get-crx/dijpllakibenlejkbajahncialkbdkjc
