Comment 71 for bug 113201

Actually it seems the change of behaviour I reported in Comment #39 was a co-incidence. I have removed all entries from the "No Proxy for" section of my connection settings, and I now normally use Safe Mode (even though the only add-ons I have are the DOM Inspector, Talkback, the British English Dictionary and the default Firefox Theme). Also I am now at 2.0.0.2.

None of these factors seems to make any difference to the problem, which is actually intermittent. Occasionally there are periods where everything works fine (and hence my Comment #39), but 95% of the time I get the hanging.

So I presume the problem is related to the proxy. But I don't think the UI should hang - even if the proxy is causing trouble.

If anyone isn't clear, I have screenshots to show what actually happens. I can also supply some full ping results (as suggested in Comment #38), but in summary I think they show that DNS is working ("Pinging recluse.mozilla.org [63.245.208.164]") and that my company is blocking ping ("Destination net unreachable." or "Request timed out.")

Do you think this is the same underlying issue as reported above? (and described in Comment #3 as "ugly architectural issues") Or shall I open a new bug? I would be glad to investigate this further in conjunction with someone who knows what they're doing; I could run debuggers, system performance monitors, or anything that would help.