Kilde:
http://wikiserver.freenethelp.org:22222/SpeedingUpFreenetTip 2 (Increasing max HTTP connections in Mozilla/Firefox)
You may notice that Freenet runs pretty slowly in some browsers, and that after opening many links simultaneously, all but one of them seem to grind to a halt. To fix this, you must increase the maximum number of connections that can be established at one time. In Mozilla/Firefox, this is done by opening the URL "about:config" (just type it into the URL box as shown, without the quotes, of course) and changing the following items to the suggested values (type "conn" in the Filter box and hit Enter to narrow the list down and make them easier to find):
network.http.max-connections (256)
network.http.max-connections-per-server (192)
network.http.max-persistent-connections-per-proxy (128)
network.http.max-persistent-connections-per-server (64)
If you have a slow modem connection, don't increase them too much, though. :-) Thank the ppl on IIP @ #freenet and #anonymous for this tip. The reason this works is because browsers limit the number of simultaneous connections to any individual site. Since every page you access on freenet is considered to be one host (127.0.0.1:8888 by default), instead of as on the general Internet, where every site is a different IP, you can only do a few things at the same time without this fix.