diff --git a/qutebrowser/browser/commands.py b/qutebrowser/browser/commands.py
index ae1319d52..103f4527a 100644
--- a/qutebrowser/browser/commands.py
+++ b/qutebrowser/browser/commands.py
@@ -123,7 +123,7 @@ class CommandDispatcher:
         """
         urlutils.raise_cmdexc_if_invalid(url)
         tabbed_browser = self._tabbed_browser
-        cmdutils.check_exclusive((tab, background, window), 'tbw')
+        cmdutils.check_exclusive((tab, background, window, private), 'tbwp')
         if private is None:
             private = self._tabbed_browser.private
 
diff --git a/qutebrowser/browser/webengine/webenginesettings.py b/qutebrowser/browser/webengine/webenginesettings.py
index 8451aa4ce..aebc4c7f7 100644
--- a/qutebrowser/browser/webengine/webenginesettings.py
+++ b/qutebrowser/browser/webengine/webenginesettings.py
@@ -295,7 +295,7 @@ MAPPINGS = {
             Attribute(QWebEngineSettings.LocalStorageEnabled),
         'cache-size':
             DefaultProfileSetter(getter='httpCacheMaximumSize',
-                          setter='setHttpCacheMaximumSize')
+                                 setter='setHttpCacheMaximumSize')
     },
     'general': {
         'xss-auditing':
diff --git a/qutebrowser/config/configdata.py b/qutebrowser/config/configdata.py
index 0ac20a1e6..7851f9964 100644
--- a/qutebrowser/config/configdata.py
+++ b/qutebrowser/config/configdata.py
@@ -1129,7 +1129,7 @@ def data(readonly=False):
              "Foreground color of the statusbar in private browsing mode."),
 
             ('statusbar.bg.private',
-             SettingValue(typ.QssColor(), 'grey'),  # FIXME darker color
+             SettingValue(typ.QssColor(), '#666666'),
              "Background color of the statusbar in private browsing mode."),
 
             ('statusbar.fg.insert',
diff --git a/tests/end2end/features/open.feature b/tests/end2end/features/open.feature
index efc132466..188347bb2 100644
--- a/tests/end2end/features/open.feature
+++ b/tests/end2end/features/open.feature
@@ -33,7 +33,7 @@ Feature: Opening pages
 
     Scenario: :open with -t and -b
         When I run :open -t -b foo.bar
-        Then the error "Only one of -t/-b/-w can be given!" should be shown
+        Then the error "Only one of -t/-b/-w/-p can be given!" should be shown
 
     Scenario: Searching with :open
         When I set general -> auto-search to naive
diff --git a/tests/end2end/features/private.feature b/tests/end2end/features/private.feature
index 0faf74014..6b4409e8d 100644
--- a/tests/end2end/features/private.feature
+++ b/tests/end2end/features/private.feature
@@ -110,3 +110,9 @@ Feature: Using private browsing
               tabs:
               - history:
                 - url: http://localhost:*/data/hello.txt
+
+    Scenario: Skipping private window when saving session
+        When I open data/hello.txt in a private window
+        And I run :session-save (tmpdir)/session.yml
+        And I wait for "Saved session */session.yml." in the log
+        Then the file session.yml should not contain "hello.txt"
diff --git a/tests/end2end/features/test_private_bdd.py b/tests/end2end/features/test_private_bdd.py
index 7587b1f4d..45f97e19a 100644
--- a/tests/end2end/features/test_private_bdd.py
+++ b/tests/end2end/features/test_private_bdd.py
@@ -33,3 +33,9 @@ def check_cookie(quteproc, name, value):
     data = json.loads(content)
     print(data)
     assert data['cookies'][name] == value
+
+
+@bdd.then(bdd.parsers.parse('the file {name} should not contain "{text}"'))
+def check_not_contain(tmpdir, name, text):
+    path = tmpdir / name
+    assert text not in path.read()
diff --git a/tests/end2end/features/urlmarks.feature b/tests/end2end/features/urlmarks.feature
index b41359885..f2d074a32 100644
--- a/tests/end2end/features/urlmarks.feature
+++ b/tests/end2end/features/urlmarks.feature
@@ -76,7 +76,7 @@ Feature: quickmarks and bookmarks
 
     Scenario: Loading a bookmark with -t and -b
         When I run :bookmark-load -t -b about:blank
-        Then the error "Only one of -t/-b/-w can be given!" should be shown
+        Then the error "Only one of -t/-b/-w/-p can be given!" should be shown
 
     Scenario: Deleting a bookmark which does not exist
         When I run :bookmark-del doesnotexist
@@ -200,7 +200,7 @@ Feature: quickmarks and bookmarks
     Scenario: Loading a quickmark with -t and -b
         When I run :quickmark-add http://localhost:(port)/data/numbers/17.txt seventeen
         When I run :quickmark-load -t -b seventeen
-        Then the error "Only one of -t/-b/-w can be given!" should be shown
+        Then the error "Only one of -t/-b/-w/-p can be given!" should be shown
 
     Scenario: Deleting a quickmark which does not exist
         When I run :quickmark-del doesnotexist