574687 - Firefox does not recognize a died proxy

Status: RESOLVED INVALID

(Core :: General, defect)

Description

[Francesco]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; it; rv:1.9.2.4) Gecko/20100611 Firefox/3.6.4 (.NET CLR 3.5.30729)
Build Identifier: 3.6.4


We have a proxy.pac that returns this line to the clients:
return "PROXY dl06:8080; PROXY dl04:8080;";

if dl06 stops working firefox doesn't switch to proxy dl04. it did before the upgrade.

Reproducible: Always





We noticed the problem today when for routine maintenance we had to reboot dl06. Helpdesk received several calls for not-working browsers

Comment 1

[Boris Zbarsky [:bzbarsky]]

Francesco, which version was working?  3.6.3?  Or 3.5.something?

Comment 2

[Francesco]

I can't say for sure but since it is an auto-update process I believe it was 3.6.3...

Comment 3

[Francesco]

A co-worker is testing

Comment 4

[Boris Zbarsky [:bzbarsky]]

Thanks!

If it turns out that the problem appeared between 3.6.3 and 3.6.4, would you be willing to test nightly builds from between those releases to help narrow down when the problem appeared?

Comment 5

[Francesco]

Yes, I may do if I don't have to do the build... can I use these:
http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/3.6.4-candidates/

or tell me where to download from

Comment 6

[Boris Zbarsky [:bzbarsky]]

You don't need to do builds.  The ones you want are at http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/ in the various *-mozilla-1.9.2 directories, where "*" is the year-month-day-hour of the build.

Comment 7

[Francesco]

Ok, I will test asap.

My co-worker reports that he could download 3.5.10 and that this version also has the problem. I need to investigate more but I'm quite sure this problem didn't show in previous versions

Comment 8

[Francesco]

I found that the problem appears when a antivirus/firewall "enterprise" product is loaded in memory. Unloading it, everythink works. I open a bug report with the antivirus vendor.

Sorry.