diff --git a/qutebrowser/browser/commands.py b/qutebrowser/browser/commands.py
index f3bb32513..7588fa424 100644
--- a/qutebrowser/browser/commands.py
+++ b/qutebrowser/browser/commands.py
@@ -1153,8 +1153,8 @@ class CommandDispatcher:
             mhtml_: Download the current page and all assets as mhtml file.
         """
         if dest_old is not None:
-            message.warning('current', ":download [url] [dest] is deprecated -"
-                            " use download --dest [dest] [url]")
+            message.warning(self._win_id, ":download [url] [dest] is deprecated"
+                            " - use download --dest [dest] [url]")
             if dest is not None:
                 raise cmdexc.CommandError("Can't give two destinations for the"
                                           " download.")
@@ -1183,6 +1183,7 @@ class CommandDispatcher:
         Args:
             dest: The file path to write the download to.
         """
+        tab_id = self._current_index()
         if dest is None:
             suggested_fn = self._current_title() + ".mht"
             q = usertypes.Question()
@@ -1190,12 +1191,15 @@ class CommandDispatcher:
             q.mode = usertypes.PromptMode.text
             q.completed.connect(q.deleteLater)
             q.default = downloads.path_suggestion(suggested_fn)
-            q.answered.connect(mhtml.start_download_checked)
+            q.answered.connect(functools.partial(
+                mhtml.start_download_checked, win_id=self._win_id,
+                tab_id=tab_id))
             message_bridge = objreg.get("message-bridge", scope="window",
                                         window=self._win_id)
             message_bridge.ask(q, blocking=False)
         else:
-            mhtml.start_download_checked(dest)
+            mhtml.start_download_checked(dest, win_id=self._win_id,
+                                         tab_id=tab_id)
 
     @cmdutils.register(instance='command-dispatcher', scope='window',
                        deprecated="Use :download instead.")
diff --git a/qutebrowser/browser/mhtml.py b/qutebrowser/browser/mhtml.py
index 1ac39be94..e7bdca516 100644
--- a/qutebrowser/browser/mhtml.py
+++ b/qutebrowser/browser/mhtml.py
@@ -415,39 +415,42 @@ class _NoCloseBytesIO(io.BytesIO):  # pylint: disable=no-init
         super().close()
 
 
-def start_download(dest):
+def _start_download(dest, win_id, tab_id):
     """Start downloading the current page and all assets to a MHTML file.
 
     This will overwrite dest if it already exists.
 
     Args:
         dest: The filename where the resulting file should be saved.
+        win_id, tab_id: Specify the tab whose page should be loaded.
     """
+
     dest = os.path.expanduser(dest)
-    web_view = objreg.get('webview', scope='tab', tab='current')
+    web_view = objreg.get('webview', scope='tab', window=win_id, tab=tab_id)
     loader = _Downloader(web_view, dest)
     loader.run()
 
-
-def start_download_checked(dest):
+def start_download_checked(dest, win_id, tab_id):
     """First check if dest is already a file, then start the download.
 
     Args:
         dest: The filename where the resulting file should be saved.
+        win_id, tab_id: Specify the tab whose page should be loaded.
     """
     # start_download will call os.path.expanduser on dest too, so no need to
     # overwrite dest. We just want to make sure that we're checking
     # the right path here. This also means that the user question will show the
     # original path, not the expanded.
     if not os.path.isfile(os.path.expanduser(dest)):
-        start_download(dest)
+        _start_download(dest, win_id=win_id, tab_id=tab_id)
         return
 
     q = usertypes.Question()
     q.mode = usertypes.PromptMode.yesno
     q.text = "{} exists. Overwrite?".format(dest)
     q.completed.connect(q.deleteLater)
-    q.answered_yes.connect(functools.partial(start_download, dest))
+    q.answered_yes.connect(functools.partial(
+        _start_download, dest, win_id=win_id, tab_id=tab_id))
     message_bridge = objreg.get('message-bridge', scope='window',
-                                window='current')
+                                window=win_id)
     message_bridge.ask(q, blocking=False)