I don't see any way to explicitly disable a proxy entry, other than leaving the field blank. What do you mean by disabled? That if you define proxies and then choose "direct internet connection" it still sets the environment variables?
-- http_proxy defined incorrectly https://launchpad.net/bugs/78098 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
