Guus Bosman

For several days now my Firefox browser has been freezing up every now and then. The browser will try to connect to a website but never get there. Sometimes it succeeds after a minute or two, sometimes it gets stuck completely. It feels as if the internet connection is dead, but Internet Explorer and other internet applications are not affected.

First I blamed the anti-virus software, but the problem occurred even after I disabled it.

Finally I got around to Googling it, and thankfully other people were experiencing the problem as well. The fix is simple. On the about:config page cange the settings for

network.http.max-connections-per-server

back to 30. In Firefox 5 the default was value 30, in version 6 and 7 it was increased to 256, which caused the problem for me. More information here: http://forums.mozillazine.org/viewtopic.php?f=38&t=2321783.