I contacted the current owner for permission to "adopt" the extension which he encouraged me to do so. However, when attempting to follow the instructions listed at: for gerrit repository ownership of the project (so that I could make updates/patches), the form to submit the phabricator task does not list the project in question. I'm not sure if this is because it's dormant or some other reason.
Please advise with any suggestions about how to request project ownership creditials for the project in question. Here's the link to the project/extension in gerrit. Thanks!