User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9) Gecko/2008061015 Firefox/3.0 Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9) Gecko/2008061015 Firefox/3.0 FF3 has been so slow for me that I installed Opera instead. Tried re-installing 0 no help. Finally I checked my settings again. Was set to auto-detect proxy settings. Changed it to "No Proxy" and FF3 FLIES FAST AGAIN! Reproducible: Always Steps to Reproduce: 1. Set to auto-detect proxy for this network 2. Go to any URL 3. Make cup of tea while you wait. Actual Results: Page retrieval/rendering very, very slow. Even Google took about 10 seconds. Expected Results: Should be as fast or faster than Opera or IE. Not sure if auto-detect is the default value or not in network settings as I have previously used a proxy (with FF2 on Ubuntu Gutsy but I used the same home partition when I upgraded my system to Ubuntu Hardy and ff3).
Auto-detect would only help in a corporate environment, because it looks for a PAC file called <http://wpad.example.com/wpad.dat>. Normally the lookup for the wpad host will fail, and that will be remembered. Note that it's *not* the default value.
Auto-detect will NOT detect the system proxy settings, i.e. it's not an automatic mode. It's only used in networks (enterprises mostly) where there's a WPAD server. I guess you have a problem in that regard, Maybe it finds such a WPAD server in DNS, but the connection times out every time.
can you reproduce in version 3.6 or http://www.mozilla.com/en-US/firefox/beta/ ? Jo, are you saying this is not a Firefox problem?
Whiteboard: [closeme 2010-12-15]
I don't know why comment 0 claims that auto-detecting a proxy was slowing things down. When no WPAD server is found in the DNS lookup, this will be remembered, and not cause to much of a problem. And if a WPAD server was found, but not answering, this too will be remembered. I don't think this was a Firefox problem, maybe Dov found a (slow) WPAD server in the network of his ISP, which caused problems. But auto-detect is not the default value.
No reply, INCOMPLETE. Please retest with Firefox 3.6.13 or later and a new profile (http://support.mozilla.com/kb/Managing+profiles). If you continue to see this issue with the newest firefox and a new profile, then please comment on this bug.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → INCOMPLETE
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