diff --git a/installer/data/mysql/sysprefs.sql b/installer/data/mysql/sysprefs.sql
index 6c6d91bc75..8e3066d675 100644
--- a/installer/data/mysql/sysprefs.sql
+++ b/installer/data/mysql/sysprefs.sql
@@ -371,3 +371,4 @@ INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('
 INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('SuspendHoldsOpac', '1', NULL , 'Allow holds to be suspended from the OPAC.', 'YesNo');
 INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('DefaultLanguageField008','','Fill in the default language for field 008 Range 35-37 (e.g. eng, nor, ger, see <a href="http://www.loc.gov/marc/languages/language_code.html">MARC Code List for Languages</a>)','','Free');
 INSERT INTO systempreferences (variable,value,explanation,options,type) VALUES('OPACShowBarcode','0','Show items barcode in holding tab','','YesNo');
+INSERT INTO systempreferences (variable,value,options,explanation,type) VALUES ('OPACShowUnusedAuthorities','1','','Show authorities that are not being used in the OPAC.','YesNo');
diff --git a/installer/data/mysql/updatedatabase.pl b/installer/data/mysql/updatedatabase.pl
index 9533b66322..baedddf6f6 100755
--- a/installer/data/mysql/updatedatabase.pl
+++ b/installer/data/mysql/updatedatabase.pl
@@ -5416,6 +5416,13 @@ if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
     SetVersion($DBversion);
 }
 
+$DBversion = "3.09.00.XXX";
+if (C4::Context->preference("Version") < TransformToNum($DBversion)) {
+    $dbh->do("INSERT INTO systempreferences (variable,value,options,explanation,type) VALUES ('OPACShowUnusedAuthorities','1','','Show authorities that are not being used in the OPAC.','YesNo')");
+    print "Upgrade to $DBversion done (Add OPACShowUnusedAuthorities system preference)\n";
+    SetVersion ($DBversion);
+}
+
 =head1 FUNCTIONS
 
 =head2 TableExists($table)
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/opac.pref b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/opac.pref
index 7ca4692623..258b078ea1 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/opac.pref
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/opac.pref
@@ -78,6 +78,12 @@ OPAC:
                   yes: Include
                   no: "Don't include"
             - "COinS / OpenURL / Z39.88 in OPAC search results.  <br/>Warning: Enabling this feature will slow OPAC search response times."
+        -
+            - pref: OPACShowUnusedAuthorities
+              choices:
+                  yes: Show
+                  no: "Do not show"
+            - unused authorities in the OPAC authority browser.
         -
             - pref: OPACShowHoldQueueDetails
               choices:
diff --git a/koha-tmpl/opac-tmpl/prog/en/modules/opac-authoritiessearchresultlist.tt b/koha-tmpl/opac-tmpl/prog/en/modules/opac-authoritiessearchresultlist.tt
index a27480a1ed..9e6c3d6723 100644
--- a/koha-tmpl/opac-tmpl/prog/en/modules/opac-authoritiessearchresultlist.tt
+++ b/koha-tmpl/opac-tmpl/prog/en/modules/opac-authoritiessearchresultlist.tt
@@ -30,7 +30,11 @@
 		</div>
 		<div id="results">
 			[% IF ( total ) %]
-			<b>Results [% from %] to [% to %] of [% total %]</b>
+                [% IF ( countfuzzy ) %]
+                    <b>Showing [% resultcount %] of about [% total %] results</b>
+                [% ELSE %]
+                    <b>Results [% from %] to [% to %] of [% total %]</b>
+                [% END %]
 			[% ELSE %]
 			No results found.
 			[% END %]
diff --git a/opac/opac-authorities-home.pl b/opac/opac-authorities-home.pl
index acff077caf..4e9f9ab4fb 100755
--- a/opac/opac-authorities-home.pl
+++ b/opac/opac-authorities-home.pl
@@ -127,6 +127,10 @@ if ( $op eq "do_search" ) {
     else {
         $to = ( ( $startfrom + 1 ) * $resultsperpage );
     }
+    unless (C4::Context->preference('OPACShowUnusedAuthorities')) {
+        my @usedauths = grep { $_->{used} > 0 } @$results;
+        $results = \@usedauths;
+    }
     $template->param( result => $results ) if $results;
     $template->param( FIELDS => \@fields );
     $template->param( orderby => $orderby );
@@ -138,9 +142,11 @@ if ( $op eq "do_search" ) {
         startfromnext  => $startfrom + 1,
         startfromprev  => $startfrom - 1,
         searchdata     => \@field_data,
+        countfuzzy     => !(C4::Context->preference('OPACShowUnusedAuthorities')),
         total          => $total,
         from           => $from,
         to             => $to,
+        resultcount    => scalar @$results,
         numbers        => \@numbers,
         authtypecode   => $authtypecode,
         authtypetext   => $authtypes->{$authtypecode}{'authtypetext'},