I’ve looked through the goodies on the site and found this:
Firefox: Open links to background tab
- Open a new tab, enter about:config
- Search for browser.tabs.loadDivertedInBackground
- Double click on ‘false’ to set ‘Value’ to ‘true’
- Go to NewsBlur and open a story with ‘o’ and see it load in the background
However, unless I’m doing something wrong this seems to affect all sites and not just Newsblur. Is There any way to restrict this to only Newsblur or some other way (perhaphs with javascript???) that I can open links in the background by pressing v on the keyboard?