I am experiencing the same problem - I can\'t browse PS forums using Firefox, when I am connecting from my home, but it works perfectly at my workplace (the same notebook, the same os, the same browser, different internet connection). I haven\'t any problems, when I use Konqueror or other browser though. I think it can be an effect of two facotors: the way of cookies handling and the presence of transparent proxy. The transparent proxy (I can\'t bypass it) caches only pictures, the html part of page is send directly to my machine. For the forum server it looks like two seprate machines were connecting, so probably there are two separate php sessions, two sets of cookies etc., and Firefox probably can\'t handle this. The result: I can see the main forum page and search results, but I can not load the contents of threads. I must wait several minutes (until php session expires?) and then a page can be refreshed.