Ok, I'm going to be upfront. This only happens when I download torrent files from this one private torrent site. A site I've been going to for YEARS. Whenever I click to download a torrent file from this site, I get the "NSPOSIXErrorDomain: 100" And this is a straight-up direct link. It's not some redirect. When I open the same link in Firefox it just says, "Not Found. Sorry pal " When I open the link in a file downloader like JDownloader, it doesn't work. When I input the URL directly into my torrent app, it won't work either. Ok, now the weird part. The ONLY way I've gotten it to work, is pasting the link into Google Chrome. Chrome has NO problem downloading the file. So, Chrome has been my crutch for he past few months. I've been waiting for the problem to just go away as the new betas have been released, but no luck so far. I should probably just stop using Safari, but I'm used to it, and I'd like to actually fix the problem. So what's the connection? What changed with Yosemite? What makes Chrome so special? What makes this site such a pain, when I've had absolutely no other problems like this? The clues are all there, but it's beyond my skill set.