DOI Resolver Plus by MDMower

Use this extension to quickly resolve DOI and ShortDOI codes via any one of several methods: extension button, right-click on selected text, or omnibox with keyword: doi.

DOI Resolver packs some great additional features, too:
1) Generate QR codes which can be scanned by smartphones to share a publication
2) Automatically convert DOI codes on web pages into links (optional)
3) Specify your own DOI resolver URL (useful if your institution provides a proxy service)
4) Generate formatted citations for publications
5) Maintain a history of viewed DOIs

No user data is collected by this extension and no information is sent back to the author.

This is an open source project. https://github.com/mdmower/doi-resolver

Omnibox usage: Type doi and press the space key. Now you can input a DOI code and press enter to retrieve the web destination.