diff --git a/network/qutebrowser/README b/network/qutebrowser/README
index 5d3cf497f4..f1ca3e6236 100644
--- a/network/qutebrowser/README
+++ b/network/qutebrowser/README
@@ -1,12 +1,59 @@
-qutebrowser (qt5 keyboard driven webbrowser)
+Qutebrowser (qt5 keyboard driven web browser)
 
-qutebrowser is a keyboard-focused browser with a minimal
+Qutebrowser is a keyboard-focused browser with a minimal
 GUI. It's based on Python and PyQt5 and free software,
 licensed under the GPL.  It was inspired by other
 browsers/addons like dwb and Vimperator/Pentadactyl.
 
-Optional dependencies:
+OPTIONAL DEPENDENCIES:
 
 qt5-webkit (for the webkit backend)
 Pygments   (for the :view-source command with the QtWebKit backend.
             and with QtWebEngine for ":view-source --pygments")
+
+ADBLOCK NOTE:
+
+If the Python `adblock' library is available, it is now used to
+integrate Brave's Rust adblocker library for improved adblocking based
+on ABP-like filter lists (such as EasyList).  If it is unavailable,
+Qutebrowser falls back to host-blocking.
+
+There are 36 rust requirements for python-adblock, and they aren't
+available on SBo yet, so the easiest way to install it is with pip3,
+which requires a working network connection.
+
+Instructions to install it into ~/.local/lib with pip3:
+
+1. Update llvm to the package in extra/
+
+To update with slackpkg:
+
+Edit /etc/slackpkg/slackpkg.conf and change the order of PRIORITY so
+that `extra' is before `%PKGMAIN' in the list:
+
+  PRIORITY=( extra patches %PKGMAIN pasture testing )
+
+Run `slackpkg upgrade llvm'
+
+Reset PRIORITY back to the default order.  The pip3 commands should be
+run as your normal user:
+
+2. Update pip3 to the latest version: pip3 install --user --upgrade pip
+
+3. Install adblock: pip3 install --user adblock
+
+Now start Qutebrowser and check `:version;'.  It should list adblock
+with the version number, e.g.:
+
+adblock: 0.4.2
+
+Next, run the update command:
+
+:adblock-update
+
+To see what options there are:
+
+:set content.blocking<TAB>
+
+llvm can be added to /etc/slackpkg/blacklist to keep this version, or
+run the slackpkg command again to revert back to the stock version.