how do i remove my ad blocker

So you want to remove an ad blocker? What site? There are no add blockers that I would image effect this site (mozilla.org) as what adds are there likely to be. If you have adds it would be interesting to know what they are, could you post a screen shot of any add on 'this site'? Then there is the query of what add blocker you may have on Firefox, have you checked what extensions you have?