diff --git a/doc/help/commands.asciidoc b/doc/help/commands.asciidoc
index bd84417d7..5fb2c9e6e 100644
--- a/doc/help/commands.asciidoc
+++ b/doc/help/commands.asciidoc
@@ -1420,6 +1420,7 @@ How many steps to zoom out.
 |<<prompt-accept,prompt-accept>>|Accept the current prompt.
 |<<prompt-item-focus,prompt-item-focus>>|Shift the focus of the prompt file completion menu to another item.
 |<<prompt-open-download,prompt-open-download>>|Immediately open a download.
+|<<prompt-yank,prompt-yank>>|Yank URL to clipboard or primary selection.
 |<<rl-backward-char,rl-backward-char>>|Move back a character.
 |<<rl-backward-delete-char,rl-backward-delete-char>>|Delete the character before the cursor.
 |<<rl-backward-kill-word,rl-backward-kill-word>>|Remove chars from the cursor to the beginning of the word.
@@ -1625,6 +1626,15 @@ If no specific command is given, this will use the system's default application
 ==== note
 * This command does not split arguments after the last argument and handles quotes literally.
 
+[[prompt-yank]]
+=== prompt-yank
+Syntax: +:prompt-yank [*--sel*]+
+
+Yank URL to clipboard or primary selection.
+
+==== optional arguments
+* +*-s*+, +*--sel*+: Use the primary selection instead of the clipboard.
+
 [[rl-backward-char]]
 === rl-backward-char
 Move back a character.
diff --git a/doc/help/settings.asciidoc b/doc/help/settings.asciidoc
index 241cdf1aa..3826e6e84 100644
--- a/doc/help/settings.asciidoc
+++ b/doc/help/settings.asciidoc
@@ -617,6 +617,8 @@ Default:
 * +pass:[&lt;Alt-Backspace&gt;]+: +pass:[rl-backward-kill-word]+
 * +pass:[&lt;Alt-D&gt;]+: +pass:[rl-kill-word]+
 * +pass:[&lt;Alt-F&gt;]+: +pass:[rl-forward-word]+
+* +pass:[&lt;Alt-Shift-Y&gt;]+: +pass:[prompt-yank --sel]+
+* +pass:[&lt;Alt-Y&gt;]+: +pass:[prompt-yank]+
 * +pass:[&lt;Ctrl-?&gt;]+: +pass:[rl-delete-char]+
 * +pass:[&lt;Ctrl-A&gt;]+: +pass:[rl-beginning-of-line]+
 * +pass:[&lt;Ctrl-B&gt;]+: +pass:[rl-backward-char]+
diff --git a/qutebrowser/browser/downloads.py b/qutebrowser/browser/downloads.py
index 12c96db7e..4f390b18b 100644
--- a/qutebrowser/browser/downloads.py
+++ b/qutebrowser/browser/downloads.py
@@ -31,7 +31,7 @@ import enum
 
 import sip
 from PyQt5.QtCore import (pyqtSlot, pyqtSignal, Qt, QObject, QModelIndex,
-                          QTimer, QAbstractListModel)
+                          QTimer, QAbstractListModel, QUrl)
 
 from qutebrowser.commands import cmdexc, cmdutils
 from qutebrowser.config import config
@@ -166,6 +166,7 @@ def get_filename_question(*, suggested_filename, url, parent=None):
     q.title = "Save file to:"
     q.text = "Please enter a location for <b>{}</b>".format(
         html.escape(url.toDisplayString()))
+    q.url = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
     q.mode = usertypes.PromptMode.download
     q.completed.connect(q.deleteLater)
     q.default = _path_suggestion(suggested_filename)
diff --git a/qutebrowser/browser/qtnetworkdownloads.py b/qutebrowser/browser/qtnetworkdownloads.py
index 7a8c5aa64..746fd8522 100644
--- a/qutebrowser/browser/qtnetworkdownloads.py
+++ b/qutebrowser/browser/qtnetworkdownloads.py
@@ -20,6 +20,7 @@
 """Download manager."""
 
 import io
+import os.path
 import shutil
 import functools
 
@@ -198,21 +199,23 @@ class DownloadItem(downloads.AbstractDownloadItem):
 
     def _ask_confirm_question(self, title, msg):
         no_action = functools.partial(self.cancel, remove_data=False)
+        url = 'file://{}'.format(self._filename)
         message.confirm_async(title=title, text=msg,
                               yes_action=self._after_set_filename,
                               no_action=no_action, cancel_action=no_action,
-                              abort_on=[self.cancelled, self.error])
+                              abort_on=[self.cancelled, self.error], url=url)
 
     def _ask_create_parent_question(self, title, msg,
                                     force_overwrite, remember_directory):
         no_action = functools.partial(self.cancel, remove_data=False)
+        url = 'file://{}'.format(os.path.dirname(self._filename))
         message.confirm_async(title=title, text=msg,
                               yes_action=(lambda:
                                           self._after_create_parent_question(
                                               force_overwrite,
                                               remember_directory)),
                               no_action=no_action, cancel_action=no_action,
-                              abort_on=[self.cancelled, self.error])
+                              abort_on=[self.cancelled, self.error], url=url)
 
     def _set_fileobj(self, fileobj, *, autoclose=True):
         """Set the file object to write the download to.
diff --git a/qutebrowser/browser/shared.py b/qutebrowser/browser/shared.py
index 5be2acd55..d82b741e5 100644
--- a/qutebrowser/browser/shared.py
+++ b/qutebrowser/browser/shared.py
@@ -23,13 +23,14 @@ import os
 import html
 import netrc
 
+from PyQt5.QtCore import QUrl
+
 from qutebrowser.config import config
 from qutebrowser.utils import usertypes, message, log, objreg, jinja, utils
 from qutebrowser.mainwindow import mainwindow
 
 
 class CallSuper(Exception):
-
     """Raised when the caller should call the superclass instead."""
 
 
@@ -63,9 +64,10 @@ def authentication_required(url, authenticator, abort_on):
     else:
         msg = '<b>{}</b> needs authentication'.format(
             html.escape(url.toDisplayString()))
+    urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
     answer = message.ask(title="Authentication required", text=msg,
                          mode=usertypes.PromptMode.user_pwd,
-                         abort_on=abort_on)
+                         abort_on=abort_on, url=urlstr)
     if answer is not None:
         authenticator.setUser(answer.user)
         authenticator.setPassword(answer.password)
@@ -80,9 +82,10 @@ def javascript_confirm(url, js_msg, abort_on):
 
     msg = 'From <b>{}</b>:<br/>{}'.format(html.escape(url.toDisplayString()),
                                           html.escape(js_msg))
+    urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
     ans = message.ask('Javascript confirm', msg,
                       mode=usertypes.PromptMode.yesno,
-                      abort_on=abort_on)
+                      abort_on=abort_on, url=urlstr)
     return bool(ans)
 
 
@@ -96,10 +99,11 @@ def javascript_prompt(url, js_msg, default, abort_on):
 
     msg = '<b>{}</b> asks:<br/>{}'.format(html.escape(url.toDisplayString()),
                                           html.escape(js_msg))
+    urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
     answer = message.ask('Javascript prompt', msg,
                          mode=usertypes.PromptMode.text,
                          default=default,
-                         abort_on=abort_on)
+                         abort_on=abort_on, url=urlstr)
 
     if answer is None:
         return (False, "")
@@ -118,8 +122,9 @@ def javascript_alert(url, js_msg, abort_on):
 
     msg = 'From <b>{}</b>:<br/>{}'.format(html.escape(url.toDisplayString()),
                                           html.escape(js_msg))
+    urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
     message.ask('Javascript alert', msg, mode=usertypes.PromptMode.alert,
-                abort_on=abort_on)
+                abort_on=abort_on, url=urlstr)
 
 
 def javascript_log_message(level, source, line, msg):
@@ -166,9 +171,10 @@ def ignore_certificate_errors(url, errors, abort_on):
         """.strip())
         msg = err_template.render(url=url, errors=errors)
 
+        urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
         ignore = message.ask(title="Certificate errors - continue?", text=msg,
                              mode=usertypes.PromptMode.yesno, default=False,
-                             abort_on=abort_on)
+                             abort_on=abort_on, url=urlstr)
         if ignore is None:
             # prompt aborted
             ignore = False
@@ -204,15 +210,17 @@ def feature_permission(url, option, msg, yes_action, no_action, abort_on):
     config_val = config.instance.get(option)
     if config_val == 'ask':
         if url.isValid():
+            urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
             text = "Allow the website at <b>{}</b> to {}?".format(
                 html.escape(url.toDisplayString()), msg)
         else:
+            urlstr = None
             text = "Allow the website to {}?".format(msg)
 
         return message.confirm_async(
             yes_action=yes_action, no_action=no_action,
             cancel_action=no_action, abort_on=abort_on,
-            title='Permission request', text=text)
+            title='Permission request', text=text, url=urlstr)
     elif config_val:
         yes_action()
         return None
diff --git a/qutebrowser/browser/urlmarks.py b/qutebrowser/browser/urlmarks.py
index 2d357a8e8..d2f563bb6 100644
--- a/qutebrowser/browser/urlmarks.py
+++ b/qutebrowser/browser/urlmarks.py
@@ -161,7 +161,7 @@ class QuickmarkManager(UrlMarkManager):
             "Add quickmark:", usertypes.PromptMode.text,
             functools.partial(self.quickmark_add, urlstr),
             text="Please enter a quickmark name for<br/><b>{}</b>".format(
-                html.escape(url.toDisplayString())))
+                html.escape(url.toDisplayString())), url=urlstr)
 
     @cmdutils.register(instance='quickmark-manager')
     def quickmark_add(self, url, name):
@@ -192,7 +192,7 @@ class QuickmarkManager(UrlMarkManager):
         if name in self.marks:
             message.confirm_async(
                 title="Override existing quickmark?",
-                yes_action=set_mark, default=True)
+                yes_action=set_mark, default=True, url=url)
         else:
             set_mark()
 
diff --git a/qutebrowser/browser/webengine/webenginedownloads.py b/qutebrowser/browser/webengine/webenginedownloads.py
index f5b6529d7..7c702a56f 100644
--- a/qutebrowser/browser/webengine/webenginedownloads.py
+++ b/qutebrowser/browser/webengine/webenginedownloads.py
@@ -135,6 +135,7 @@ class DownloadItem(downloads.AbstractDownloadItem):
         question = usertypes.Question()
         question.title = title
         question.text = msg
+        question.url = 'file://{}'.format(self._filename)
         question.mode = usertypes.PromptMode.yesno
         question.answered_yes.connect(self._after_set_filename)
         question.answered_no.connect(no_action)
@@ -149,6 +150,7 @@ class DownloadItem(downloads.AbstractDownloadItem):
         question = usertypes.Question()
         question.title = title
         question.text = msg
+        question.url = 'file://{}'.format(os.path.dirname(self._filename))
         question.mode = usertypes.PromptMode.yesno
         question.answered_yes.connect(lambda:
                                       self._after_create_parent_question(
diff --git a/qutebrowser/browser/webengine/webenginetab.py b/qutebrowser/browser/webengine/webenginetab.py
index f8ad7e2cc..280c55c39 100644
--- a/qutebrowser/browser/webengine/webenginetab.py
+++ b/qutebrowser/browser/webengine/webenginetab.py
@@ -757,10 +757,11 @@ class WebEngineTab(browsertab.AbstractTab):
         """Called when a proxy needs authentication."""
         msg = "<b>{}</b> requires a username and password.".format(
             html_utils.escape(proxy_host))
+        urlstr = url.toString(QUrl.RemovePassword | QUrl.FullyEncoded)
         answer = message.ask(
             title="Proxy authentication required", text=msg,
             mode=usertypes.PromptMode.user_pwd,
-            abort_on=[self.shutting_down, self.load_started])
+            abort_on=[self.shutting_down, self.load_started], url=urlstr)
         if answer is not None:
             authenticator.setUser(answer.user)
             authenticator.setPassword(answer.password)
diff --git a/qutebrowser/browser/webkit/webpage.py b/qutebrowser/browser/webkit/webpage.py
index 5c2bb4111..7a13bb07e 100644
--- a/qutebrowser/browser/webkit/webpage.py
+++ b/qutebrowser/browser/webkit/webpage.py
@@ -147,7 +147,8 @@ class BrowserPage(QWebPage):
                 title="Open external application for {}-link?".format(scheme),
                 text="URL: <b>{}</b>".format(
                     html.escape(url.toDisplayString())),
-                yes_action=functools.partial(QDesktopServices.openUrl, url))
+                yes_action=functools.partial(QDesktopServices.openUrl, url),
+                url=info.url.toString(QUrl.FullyEncoded))
             return True
         elif (info.domain, info.error) in ignored_errors:
             log.webview.debug("Ignored error on {}: {} (error domain: {}, "
diff --git a/qutebrowser/config/configdata.yml b/qutebrowser/config/configdata.yml
index ff67cc414..72450978b 100644
--- a/qutebrowser/config/configdata.yml
+++ b/qutebrowser/config/configdata.yml
@@ -2360,6 +2360,8 @@ bindings.default:
       <Up>: prompt-item-focus prev
       <Tab>: prompt-item-focus next
       <Down>: prompt-item-focus next
+      <Alt-Y>: prompt-yank
+      <Alt-Shift-Y>: prompt-yank --sel
       <Ctrl-B>: rl-backward-char
       <Ctrl-F>: rl-forward-char
       <Alt-B>: rl-backward-word
@@ -2371,9 +2373,9 @@ bindings.default:
       <Alt-D>: rl-kill-word
       <Ctrl-W>: rl-unix-word-rubout
       <Alt-Backspace>: rl-backward-kill-word
-      <Ctrl-Y>: rl-yank
       <Ctrl-?>: rl-delete-char
       <Ctrl-H>: rl-backward-delete-char
+      <Ctrl-Y>: rl-yank
       <Escape>: leave-mode
     caret:
       v: toggle-selection
diff --git a/qutebrowser/mainwindow/prompt.py b/qutebrowser/mainwindow/prompt.py
index df4c45096..931d32654 100644
--- a/qutebrowser/mainwindow/prompt.py
+++ b/qutebrowser/mainwindow/prompt.py
@@ -422,6 +422,27 @@ class PromptContainer(QWidget):
         except UnsupportedOperationError:
             pass
 
+    @cmdutils.register(
+        instance='prompt-container', scope='window',
+        modes=[usertypes.KeyMode.prompt, usertypes.KeyMode.yesno])
+    def prompt_yank(self, sel=False):
+        """Yank URL to clipboard or primary selection.
+
+        Args:
+            sel: Use the primary selection instead of the clipboard.
+        """
+        question = self._prompt.question
+        if question.url is None:
+            message.error('No URL found.')
+            return
+        if sel and utils.supports_selection():
+            target = 'primary selection'
+        else:
+            sel = False
+            target = 'clipboard'
+        utils.set_clipboard(question.url, sel)
+        message.info("Yanked to {}: {}".format(target, question.url))
+
 
 class LineEdit(QLineEdit):
 
@@ -721,6 +742,7 @@ class DownloadFilenamePrompt(FilenamePrompt):
             ('prompt-accept', 'Accept'),
             ('leave-mode', 'Abort'),
             ('prompt-open-download', "Open download"),
+            ('prompt-yank', "Yank URL"),
         ]
         return cmds
 
@@ -811,6 +833,7 @@ class YesNoPrompt(_BasePrompt):
         cmds = [
             ('prompt-accept yes', "Yes"),
             ('prompt-accept no', "No"),
+            ('prompt-yank', "Yank URL"),
         ]
 
         if self.question.default is not None:
diff --git a/qutebrowser/utils/message.py b/qutebrowser/utils/message.py
index 49fb021a4..9dc8d7411 100644
--- a/qutebrowser/utils/message.py
+++ b/qutebrowser/utils/message.py
@@ -87,7 +87,8 @@ def info(message, *, replace=False):
     global_bridge.show(usertypes.MessageLevel.info, message, replace)
 
 
-def _build_question(title, text=None, *, mode, default=None, abort_on=()):
+def _build_question(title, text=None, *, mode, default=None, abort_on=(),
+                    url=None):
     """Common function for ask/ask_async."""
     if not isinstance(mode, usertypes.PromptMode):
         raise TypeError("Mode {} is no PromptMode member!".format(mode))
@@ -96,6 +97,7 @@ def _build_question(title, text=None, *, mode, default=None, abort_on=()):
     question.text = text
     question.mode = mode
     question.default = default
+    question.url = url
     for sig in abort_on:
         sig.connect(question.abort)
     return question
diff --git a/qutebrowser/utils/usertypes.py b/qutebrowser/utils/usertypes.py
index dc57e708c..8312cd803 100644
--- a/qutebrowser/utils/usertypes.py
+++ b/qutebrowser/utils/usertypes.py
@@ -266,6 +266,7 @@ class Question(QObject):
                  For user_pwd, a default username as string.
         title: The question title to show.
         text: The prompt text to display to the user.
+        url: Any URL referenced in prompts.
         answer: The value the user entered (as password for user_pwd).
         is_aborted: Whether the question was aborted.
         interrupted: Whether the question was interrupted by another one.
@@ -296,6 +297,7 @@ class Question(QObject):
         self.default = None
         self.title = None
         self.text = None
+        self.url = None
         self.answer = None
         self.is_aborted = False
         self.interrupted = False