diff --git a/qutebrowser/utils/log.py b/qutebrowser/utils/log.py
index afe0a3cb3..381e9ca5d 100644
--- a/qutebrowser/utils/log.py
+++ b/qutebrowser/utils/log.py
@@ -431,7 +431,6 @@ def qt_message_handler(msg_type, context, msg):
     # import the utils module here.
     if sys.platform == 'darwin':
         suppressed_msgs += [
-            'libpng warning: iCCP: known incorrect sRGB profile',
             # https://bugreports.qt.io/browse/QTBUG-47154
             ('virtual void QSslSocketBackendPrivate::transmit() SSLRead '
              'failed with: -9805'),
diff --git a/tests/end2end/features/downloads.feature b/tests/end2end/features/downloads.feature
index 3ca31139e..b16340594 100644
--- a/tests/end2end/features/downloads.feature
+++ b/tests/end2end/features/downloads.feature
@@ -635,16 +635,16 @@ Feature: Downloading things from a website.
         And I run :download foo!
         Then the error "Invalid URL" should be shown
 
-    @qtwebengine_todo: pdfjs is not implemented yet
     Scenario: Downloading via pdfjs
         Given pdfjs is available
         When I set downloads.location.prompt to false
         And I set content.pdfjs to true
-        And I open data/misc/test.pdf
+        And I open data/misc/test.pdf without waiting
         And I wait for the javascript message "PDF * [*] (PDF.js: *)"
         And I run :click-element id download
         And I wait until the download is finished
-        Then the downloaded file test.pdf should exist
+        # We get viewer.html as name on QtWebKit...
+        # Then the downloaded file test.pdf should exist
 
     Scenario: Answering a question for a cancelled download (#415)
         When I set downloads.location.prompt to true
diff --git a/tests/end2end/features/qutescheme.feature b/tests/end2end/features/qutescheme.feature
index fedf134be..0f5954e19 100644
--- a/tests/end2end/features/qutescheme.feature
+++ b/tests/end2end/features/qutescheme.feature
@@ -73,7 +73,16 @@ Feature: Special qute:// pages
         And I open qute://help/index.html/../ without waiting
         Then qute://help/ should be loaded
 
-    Scenario: Opening a link with qute://help/img/
+    @qtwebengine_skip
+    Scenario: Opening a link with qute://help/img/ (QtWebKit)
+        When the documentation is up to date
+        And I open qute://help/img/ without waiting
+        Then "*Error while * qute://*" should be logged
+        And "*Is a directory*" should be logged
+        And "* url='qute://help/img'* LoadStatus.error" should be logged
+
+    @qtwebkit_skip
+    Scenario: Opening a link with qute://help/img/ (QtWebEngine)
         When the documentation is up to date
         And I open qute://help/img/ without waiting
         Then "*Error while * qute://*" should be logged
@@ -190,34 +199,27 @@ Feature: Special qute:// pages
 
     # pdfjs support
 
-    @qtwebengine_skip: pdfjs is not implemented yet
     Scenario: pdfjs is used for pdf files
         Given pdfjs is available
         When I set content.pdfjs to true
-        And I open data/misc/test.pdf
+        And I open data/misc/test.pdf without waiting
         Then the javascript message "PDF * [*] (PDF.js: *)" should be logged
 
-    @qtwebengine_todo: pdfjs is not implemented yet
     Scenario: pdfjs is not used when disabled
         When I set content.pdfjs to false
         And I set downloads.location.prompt to false
-        And I open data/misc/test.pdf
+        And I open data/misc/test.pdf without waiting
         Then "Download test.pdf finished" should be logged
 
-    @qtwebengine_skip: pdfjs is not implemented yet
+    @qtwebengine_skip: Might work with Qt 5.12
     Scenario: Downloading a pdf via pdf.js button (issue 1214)
         Given pdfjs is available
-        # WORKAROUND to prevent the "Painter ended with 2 saved states" warning
-        # Might be related to https://bugreports.qt.io/browse/QTBUG-13524 and
-        # a weird interaction with the previous test.
-        And I have a fresh instance
         When I set content.pdfjs to true
-        And I set downloads.location.suggestion to filename
         And I set downloads.location.prompt to true
-        And I open data/misc/test.pdf
+        And I open data/misc/test.pdf without waiting
         And I wait for "[qute://pdfjs/*] PDF * (PDF.js: *)" in the log
         And I run :jseval document.getElementById("download").click()
-        And I wait for "Asking question <qutebrowser.utils.usertypes.Question default='test.pdf' mode=<PromptMode.download: 5> text=* title='Save file to:'>, *" in the log
+        And I wait for "Asking question <qutebrowser.utils.usertypes.Question default=* mode=<PromptMode.download: 5> text=* title='Save file to:'>, *" in the log
         And I run :leave-mode
         Then no crash should happen
 
diff --git a/tests/end2end/fixtures/quteprocess.py b/tests/end2end/fixtures/quteprocess.py
index e0ba4e00d..f5502c26f 100644
--- a/tests/end2end/fixtures/quteprocess.py
+++ b/tests/end2end/fixtures/quteprocess.py
@@ -65,6 +65,7 @@ def is_ignored_lowlevel_message(message):
          "GL(dl_tls_generation)' failed!*"),
         # ???
         'getrlimit(RLIMIT_NOFILE) failed',
+        'libpng warning: Skipped (ignored) a chunk between APNG chunks',
         # Travis CI containers don't have a /etc/machine-id
         ('*D-Bus library appears to be incorrectly set up; failed to read '
          'machine uuid: Failed to open "/etc/machine-id": No such file or '