Ive had this problem for a little while now, i cant say exactly when but it started with sites such as youtube and has spread out from there really, the biggest culprits are youtube and myspace.
The issue is that if i was on youtube and wanted to watch a video i would obviously click the link, firefox would then show the loading bar and my page loading timer would start but it would never actually begin loading, the status bar would say "loading" or if i clicked the link again it would show "stopped" yet the loading bar would be there. Needless to say the loading bar never shows any progress and it never loads, its not just lagging it never loads and im on a fast connection so almost any site loads within 1O seconds easily but i have left it fr a few minutes and not even one section lights up on the loading bar.
A few causes i can think of are me changing the settings in about:config to allow higher pipelining and max connections or maybe my extensions im using, namely, the IE tab, fasterfox, window resize and the FDM addon.
If anyone knows why this happens or how to fix it then do tell!

