Here is my site: http://www.naaip.org/ I have lots of pdfs there which was working fine before but from few days Firefox is not able to open them. It starts loading than stops. Here are few of them: http://www.naaip.org/gerber.pdf http://www.naaip.org/forethought.pdf http://www.naaip.org/cigna.pdf And many more... First I tried fixing the pdfs thinking that they might got damaged. But when I checked the same pdfs in Chrome all are working fine. So it means pdfs are fine. I had spend lot of my time in finding solution to this but find nothing. One more thing I have uploaded the same pdf to my other site and it opens fine in Firefox. Here it is: http://www.bestmedicaresupplement.com/gerber.pdf Please anyone help to find the solution to it. Looks like there might be some problem in my hosting but if anyone knows something about it, it will be a quick tick for me to solve it. NAAIP