diff --git a/doc/changelog.asciidoc b/doc/changelog.asciidoc
index c4b24640f..0b681a546 100644
--- a/doc/changelog.asciidoc
+++ b/doc/changelog.asciidoc
@@ -45,6 +45,8 @@ Added
 - New t[iI][hHu] default bindings (similar to `tsh` etc.) to toggle images.
 - New `tabs.max_width` setting which allows to have a more "normal" look for
   tabs.
+- New `content.mute` setting which allows to mute pages (or all tabs) by
+  default.
 
 Changed
 ~~~~~~~
diff --git a/doc/help/settings.asciidoc b/doc/help/settings.asciidoc
index eb4b7f79c..7c49e5364 100644
--- a/doc/help/settings.asciidoc
+++ b/doc/help/settings.asciidoc
@@ -145,6 +145,7 @@
 |<<content.local_storage,content.local_storage>>|Enable support for HTML 5 local storage and Web SQL.
 |<<content.media_capture,content.media_capture>>|Allow websites to record audio/video.
 |<<content.mouse_lock,content.mouse_lock>>|Allow websites to lock your mouse pointer.
+|<<content.mute,content.mute>>|Automatically mute tabs.
 |<<content.netrc_file,content.netrc_file>>|Netrc-file for HTTP authentication.
 |<<content.notifications,content.notifications>>|Allow websites to show notifications.
 |<<content.pdfjs,content.pdfjs>>|Allow pdf.js to view PDF files in the browser.
@@ -1916,6 +1917,16 @@ On QtWebEngine, this setting requires Qt 5.8 or newer.
 
 On QtWebKit, this setting is unavailable.
 
+[[content.mute]]
+=== content.mute
+Automatically mute tabs.
+
+This setting supports URL patterns.
+
+Type: <<types,Bool>>
+
+Default: +pass:[false]+
+
 [[content.netrc_file]]
 === content.netrc_file
 Netrc-file for HTTP authentication.