You should include some add-on options for your extension. I think remembering whether I want resurrected pages to open in a tab, a window, or current page would be a welcomed addition. Having to click the "tab" bullet every time is kinda annoying. Also, you should consider adding duggmirror to the list (at least for sites that make it to digg.com homepage).
Also, a quick resurrect feature would be nice. If we want to choose Coral cache every time, then not having to go through the popup would be even nicer. Otherwise, it's a great extension and you should consider expanding it. :)