It's just annoying. If I want to open a new window, I'll do that myself by cmd-clicking or some variant of that.
There are a million tools for users to control their browsing experience ... in the browser. Do not force it in your application.
Agreed. Is there a plugin in Firefox that ignores target directives and does it the way I want?
https://addons.mozilla.org/en-US/firefox/addon/1122
It has a whole bunch of features, one of which is to force all links to open in the current tab.