diff --git a/qutebrowser/config/config.py b/qutebrowser/config/config.py
index 13f745216..d1f8b2b44 100644
--- a/qutebrowser/config/config.py
+++ b/qutebrowser/config/config.py
@@ -259,9 +259,8 @@ class Config(QObject):
             self._values[name] = configutils.Values(opt)
 
     def __iter__(self):
-        """Iterate over Option, configutils.Values tuples."""
-        for name, values in sorted(self._values.items()):
-            yield self.get_opt(name), values
+        """Iterate over configutils.Values items."""
+        yield from self._values.values()
 
     def init_save_manager(self, save_manager):
         """Make sure the config gets saved properly.
@@ -287,9 +286,10 @@ class Config(QObject):
     def read_yaml(self):
         """Read the YAML settings from self._yaml."""
         self._yaml.load()
-        # FIXME:conf implement in self._yaml
-        for pattern, name, value in self._yaml:
-            self._set_value(self.get_opt(name), value, pattern=pattern)
+        for values in self._yaml:
+            for scoped in values:
+                self._set_value(values.opt, scoped.value,
+                                pattern=scoped.pattern)
 
     def get_opt(self, name):
         """Get a configdata.Option object for the given setting."""
@@ -443,17 +443,14 @@ class Config(QObject):
         Return:
             The changed config part as string.
         """
-        lines = []
-        for pattern, opt, value in self:
-            str_value = opt.typ.to_str(value)
-            if pattern is None:
-                lines.append('{} = {}'.format(opt.name, str_value))
-            else:
-                lines.append('{}: {} = {}'.format(pattern, opt.name,
-                                                  str_value))
-        if not lines:
+        blocks = []
+        for values in self:
+            if values:
+                blocks.append(str(values))
+
+        if not blocks:
             lines = ['<Default configuration>']
-        return '\n'.join(lines)
+        return '\n'.join(blocks)
 
 
 class ConfigContainer:
diff --git a/qutebrowser/config/configfiles.py b/qutebrowser/config/configfiles.py
index d7ba4493c..cbd6dd4f6 100644
--- a/qutebrowser/config/configfiles.py
+++ b/qutebrowser/config/configfiles.py
@@ -102,8 +102,8 @@ class YamlConfig(QObject):
         save_manager.add_saveable('yaml-config', self._save, self.changed)
 
     def __iter__(self):
-        for _name, values in sorted(self._values.items()):
-            yield from values
+        """Iterate over configutils.Values items."""
+        yield from self._values.values()
 
     def _mark_changed(self):
         """Mark the YAML config as changed."""
@@ -183,7 +183,7 @@ class YamlConfig(QObject):
 
         # FIXME:conf test this
         for name, yaml_values in settings_obj.items():
-            values = configutils.Values(self._config.get_opt(name))
+            values = configutils.Values(configdata.DATA[name])
             if 'global' in yaml_values:
                 values.add(yaml_values.pop('global'))
 
@@ -224,10 +224,9 @@ class YamlConfig(QObject):
     def _validate(self):
         """Make sure all settings exist."""
         unknown = []
-        for _pattern, name, _value in self:
-            # FIXME:conf show pattern
-            if name not in configdata.DATA:
-                unknown.append(name)
+        for values in self:
+            if values.opt.name not in configdata.DATA:
+                unknown.append(values.opt.name)
 
         if unknown:
             errors = [configexc.ConfigErrorDesc("While loading options",
diff --git a/qutebrowser/config/configutils.py b/qutebrowser/config/configutils.py
index ef6e87359..9ddd6e824 100644
--- a/qutebrowser/config/configutils.py
+++ b/qutebrowser/config/configutils.py
@@ -58,13 +58,28 @@ class Values:
     all ScopedValues for the given setting.
 
     Attributes:
-        _opt: The Option being customized.
+        opt: The Option being customized.
     """
 
     def __init__(self, opt):
-        self._opt = opt
+        self.opt = opt
         self._values = []
 
+    def __str__(self):
+        """Get the values as human-readable string."""
+        if not self:
+            return '{}: <unchanged>'.format(self.opt.name)
+
+        lines = []
+        for scoped in self._values:
+            str_value = self.opt.typ.to_str(scoped.value)
+            if scoped.pattern is None:
+                lines.append('{} = {}'.format(self.opt.name, str_value))
+            else:
+                lines.append('{}: {} = {}'.format(
+                    scoped.pattern, self.opt.name, str_value))
+        return '\n'.join(lines)
+
     def __iter__(self):
         """Yield ScopedValue elements.
 
@@ -107,7 +122,7 @@ class Values:
                 # default for a given URL.
                 return scoped.value
 
-        return self._opt.default
+        return self.opt.default
 
     def get_for_url(self, url=None, *, fallback=True):
         """Get a config value, falling back when needed.
diff --git a/qutebrowser/config/websettings.py b/qutebrowser/config/websettings.py
index f4b5d9820..83b45186a 100644
--- a/qutebrowser/config/websettings.py
+++ b/qutebrowser/config/websettings.py
@@ -222,12 +222,12 @@ def update_mappings(mappings, option):
 
 def update_for_tab(mappings, tab, url):
     """Update settings customized for the given tab."""
-    for opt, values in config.instance:
-        if opt.name not in mappings:
+    for values in config.instance:
+        if values.opt.name not in mappings:
             continue
 
         # FIXME:conf handle settings != None with global/static setters
-        mapping = mappings[opt.name]
+        mapping = mappings[values.opt.name]
 
         value = values.get_for_url(url, fallback=False)
         # FIXME:conf have a proper API for this.