diff --git a/qutebrowser/app.py b/qutebrowser/app.py
index 26dea4637..fd4c3ae86 100644
--- a/qutebrowser/app.py
+++ b/qutebrowser/app.py
@@ -57,7 +57,7 @@ from qutebrowser.commands.keys import KeyParser
 from qutebrowser.commands.parsers import CommandParser, SearchParser
 from qutebrowser.utils.appdirs import AppDirs
 from qutebrowser.utils.misc import dotted_getattr
-from qutebrowser.utils.debug import set_trace  # noqa pylint: disable=unused-import
+from qutebrowser.utils.debug import set_trace  # pylint: disable=unused-import
 
 
 class QuteBrowser(QApplication):
diff --git a/qutebrowser/commands/parsers.py b/qutebrowser/commands/parsers.py
index 5171ebcf1..e6289c28f 100644
--- a/qutebrowser/commands/parsers.py
+++ b/qutebrowser/commands/parsers.py
@@ -100,7 +100,7 @@ class SearchParser(QObject):
             do_search: If a search should be started.
         """
         if self._text is not None:
-            for i in range(count):  # pylint: disable=unused-variable
+            for _ in range(count):
                 self.do_search.emit(self._text, self._flags)
 
 
diff --git a/qutebrowser/models/completion.py b/qutebrowser/models/completion.py
index 98de6cec0..e5bfa3256 100644
--- a/qutebrowser/models/completion.py
+++ b/qutebrowser/models/completion.py
@@ -243,7 +243,7 @@ class CompletionModel(QAbstractItemModel):
         except (IndexError, ValueError):
             return False
         # We explicitely need to select this version, see [1].
-        # [1] http://python.6.x6.nabble.com/Bug-Report-pyqt5-discard-silently-signal-with-missing-optional-parameters-dataChanged-roles-for-exam-tt5043737.html  # noqa pylint: disable=line-too-long
+        # [1] http://python.6.x6.nabble.com/Bug-Report-pyqt5-discard-silently-signal-with-missing-optional-parameters-dataChanged-roles-for-exam-tt5043737.html  # pylint: disable=line-too-long
         self.dataChanged.emit(index, index, [])
         return True
 
diff --git a/qutebrowser/utils/style.py b/qutebrowser/utils/style.py
index 83003ee36..51a8d2401 100644
--- a/qutebrowser/utils/style.py
+++ b/qutebrowser/utils/style.py
@@ -35,7 +35,7 @@ class Style(QCommonStyle):
     Based on:
 
     http://stackoverflow.com/a/17294081
-    https://code.google.com/p/makehuman/source/browse/trunk/makehuman/lib/qtgui.py # noqa # pylint: disable=line-too-long
+    https://code.google.com/p/makehuman/source/browse/trunk/makehuman/lib/qtgui.py # pylint: disable=line-too-long
 
     Attributes:
         _style: The base/"parent" style.
diff --git a/qutebrowser/widgets/statusbar.py b/qutebrowser/widgets/statusbar.py
index 578dbb455..5b7369147 100644
--- a/qutebrowser/widgets/statusbar.py
+++ b/qutebrowser/widgets/statusbar.py
@@ -249,7 +249,7 @@ class _Command(QLineEdit):
 
     # FIXME won't the tab key switch to the next widget?
     # See [0] for a possible fix.
-    # [0] http://www.saltycrane.com/blog/2008/01/how-to-capture-tab-key-press-event-with/ # noqa # pylint: disable=line-too-long
+    # [0] http://www.saltycrane.com/blog/2008/01/how-to-capture-tab-key-press-event-with/ # pylint: disable=line-too-long
 
     def __init__(self, statusbar):
         super().__init__(statusbar)
diff --git a/qutebrowser/widgets/tabbar.py b/qutebrowser/widgets/tabbar.py
index 9e3dbe6c7..6a9d72804 100644
--- a/qutebrowser/widgets/tabbar.py
+++ b/qutebrowser/widgets/tabbar.py
@@ -99,9 +99,9 @@ class TabWidget(QTabWidget):
         except KeyError:
             pass
 
+    # pylint: disable=unused-argument
     @pyqtSlot(str, str, object)
     def on_config_changed(self, section, option, value):
         """Update attributes when config changed."""
-        # pylint: disable=unused-argument
         if section == 'tabbar':
             self._init_config()
diff --git a/qutebrowser/widgets/tabbedbrowser.py b/qutebrowser/widgets/tabbedbrowser.py
index c92e21b6c..d5b5db3f7 100644
--- a/qutebrowser/widgets/tabbedbrowser.py
+++ b/qutebrowser/widgets/tabbedbrowser.py
@@ -539,7 +539,7 @@ class CurCommandDispatcher(QObject):
             count: How many pages to go back.
         """
         # FIXME display warning if beginning of history
-        for i in range(count):  # pylint: disable=unused-variable
+        for _ in range(count):
             self.tabs.currentWidget().back()
 
     @cmdutils.register(instance='mainwindow.tabs.cur')
@@ -552,7 +552,7 @@ class CurCommandDispatcher(QObject):
             count: How many pages to go forward.
         """
         # FIXME display warning if end of history
-        for i in range(count):  # pylint: disable=unused-variable
+        for _ in range(count):
             self.tabs.currentWidget().forward()
 
     @pyqtSlot(str, int)
diff --git a/run_checks.py b/run_checks.py
index 1fed9f728..dad4150e9 100644
--- a/run_checks.py
+++ b/run_checks.py
@@ -67,6 +67,8 @@ options = {
         'flake8': [
             'E241',  # Multiple spaces after ,
             'E265',  # Block comment should start with '#'
+            'F401',  # Unused import (checked by pylint)
+            'E501',  # Line too long (checked by pylint)
         ],
         'pep257': [
             'D102',  # Docstring missing, will be handled by others