I have a pending case for naturalization based on marriage, it is on a final decision making stage (I passed my interview and got preaproved). I got fired couple days ago for "not smiling" and planning to file for unemployment. Question: would me being out of work and collecting negatively influence decision about my naturalization? Or those are two different subjects?

Your lack of employment could (and probably will) effect your status. You need to find another job - and I know that the economy is bad.

I am "assuming" you are asking about the US?