Comment 24 for bug 1194841

We definitely support systems without GConf and gsettings-desktop-schemas (which is GNOME-specific AFAIK).
(I don't know whether or not that is equivalent, for purposes of this bug, to removing libmozgnome.so - libmozgnome should now load on all systems because there are no longer gnomevfs or libnotify dependencies, and GConf is accessed through dlopen.)

(In reply to Wolfgang Rosenauer [:wolfiR] from comment #2)
> With Firefox 18
> (actually I noticed the changed behaviour with Thunderbird 18b1) I'm not
> able to access any HTTP site at all. I only get the error page that my proxy
> server cannot be accessed.

(In reply to Wolfgang Rosenauer [:wolfiR] from comment #4)
> Starting up TB and I see immediately a "The proxy server is refusing
> connections" error.

(In reply to Wolfgang Rosenauer [:wolfiR] from comment #5)
> Ok, the same steps fail for Firefox.
> [...]
> Now I do not have an idea what could cause that difference between Firefox
> and Thunderbird.

What is the difference in behavior between Firefox and Thunderbird?