I'm surfing the web and out of the blue I'm getting multiple "Connection reset" pages on several unrelated pages. Most of the time the page will load after hitting the refresh button several times. The only way to fix this permanently is to reboot my computer. I prefer to hibernate my PC instead of shutting it down.
I'm pretty certain that the fault lies with my machine or Firefox, because other internet services(IM, Torrent client, steam) work as expected. Cant and wont try another browser as long as I've Firefox installed so I cant say if the same happens with other browsers too.
I've worked through this article (http://kb.mozillazine.org/Error_loading_any_website) and can say that my antivirus/firewall is also not the cause.
Further I found, though I might only imagining it that clearing the cache helps to remedy the error for a short while. The cache size is about 500mb in those cases.
Version above 15 have other issues which are much more severe than the occasional connection reset. I'm talking crashes for no obvious reasons and a huge lag when not crashing. So I'd rather stick to 15