You can set Mouse gesture to perform a certain job: e.g. open in background.
Look in Edit > Adanced Preferences > Mouse Gestures.
You can quick set K-emelon to use the same reaction as Firefox. c. FAQS.
Which point to Tools > Mouse Accelerators
- You can do any of that untill You have better answers. I never spend a thought on how to fix the behaviour on a certain reaction
I click with right mouse button that opens a menue that lets me chose whether the links opens in background or foreground.