How can I make Chrome open bookmarked pages in new tab by default?
Solution 1:
Alternatively, you could use
javascript:window.open('url')
For example,
javascript:window.open('http://www.google.com')
Solution 2:
I don't really follow on the bookmark thing you're talking about, but if you're looking for the similar function of clicking the middle wheel, then Ctrl+left click on a link. This will open the link in a new tab while keeping the page you're on active.
There are many keyboard shortcuts for Chrome and it's worth taking a look at their support site under keyboard and mouse shortcuts for a full list.
Another one you might like is ctrl+shift+left click which will open the link in a new tab and jump you to it.
https://support.google.com/chrome/answer/157179?hl=en