If I've got this correct, here's what's happening:
If I launch a bookmark via LaunchBar while I have a new window open in OmniWeb, it will open it as the second tab, while the first tab will be blank. To make it worse, it just says "Loading" as the title on that tab so if I don't delete it I might forget what it is and think I'm waiting for something to load. If I have OmniWeb open but don't have a window open, it will open as expected in a new window (as the first tab if you open the tab drawer)
This doesn't occur in other browsers as far as I can tell -- it will just open the link in the current window regardless of whether a new window is open or not, it seems to me this is the preferred behavior. So I'm assuming OmniWeb might be able to do it the same way, and it's not necessarily a LaunchBar thing.
If I launch a bookmark via LaunchBar while I have a new window open in OmniWeb, it will open it as the second tab, while the first tab will be blank. To make it worse, it just says "Loading" as the title on that tab so if I don't delete it I might forget what it is and think I'm waiting for something to load. If I have OmniWeb open but don't have a window open, it will open as expected in a new window (as the first tab if you open the tab drawer)
This doesn't occur in other browsers as far as I can tell -- it will just open the link in the current window regardless of whether a new window is open or not, it seems to me this is the preferred behavior. So I'm assuming OmniWeb might be able to do it the same way, and it's not necessarily a LaunchBar thing.