Firefox 7 is terribly slow even after disabling plugins and complete reinstall
Since upgrading to 7.0, and 7.0.1, I have had major problems with Firefox tabs being stuck on "Connecting..." and never loading the web page. Occasionally this is accompanied by a crash. I have disabled all extensions, disabled IPv6, dnsPrefetch, removed and reinstalled the app with a new blank profile and the issue continues. I also disabled Sophos, the security suite I am currently using. I never ran into any of these issues in version 6. I am currently running the roboform plugin but I have disabled this previously in an attempt to resolve the issue.
Toate răspunsurile (3)
Go to Tools > Options > Advanced > Network and click Settings under Connection. Try no proxy (or if that's what it currently is, try system default).
I'd also check again for security software. Sometimes "disable" just means it doesn't block incoming traffic but it still restricts outgoing. You may also have other security software (it may get installed with stuff like Skype or come bundled with your computer).
The default of the pref network.http.max-connections has been increased from 30 to 256 in Firefox 6+ versions.
You can try to decrease the value of the pref network.http.max-connections from 255 to a more modest setting like 30 as used in Firefox 3 versions.
I downgraded to 6 and the problem does not occur on the same system. It seems specific to version 7.