[Bug 677417] [NEW] Firefox is slow if automatic detection of proxy is on, but there is no proxy

[PeterPall]

Public bug reported:

Binary package hint: firefox

How to reproduce the problem:
- Connect to a network that doesn't provide a http://wpad/wpad.dat file with proxy settings
- Go to Edit/preferences/Advanced/Connection settings and turn on automatic proxy detection

>From now on Firefox 4 tries to download the proxy settings from
http://wpad/wpad.dat every time you click on a link. And it every time
waits for the timeout of the domain name server telling there is no
http://wpad before proceeding to downloading the actual internet page.

Not really a bug, maybe. But makes surfing in the internet extremely
slow and is at the same time hard to hunt down; Did never experience
this with Firefox 3 but - did never actually connect the network before
I am in right now.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: firefox 4.0~b7+nobinonly-0ubuntu2
ProcVersionSignature: Ubuntu 2.6.37-5.13-generic 2.6.37-rc2
Uname: Linux 2.6.37-5-generic i686
Architecture: i386
Date: Fri Nov 19 12:38:47 2010
EcryptfsInUse: Yes
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: firefox

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 natty

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Firefox is slow if automatic detection of proxy is on, but there is no proxy
https://bugs.launchpad.net/bugs/677417
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