diff --git a/vimperator/NEWS b/vimperator/NEWS
index 47e745ed..999f5137 100644
--- a/vimperator/NEWS
+++ b/vimperator/NEWS
@@ -19,6 +19,7 @@
        know if I like copying bugs)
     * IMPORTANT: 'popups' now takes a stringlist rather than a number.
 
+    * add [c]:only[c]
     * add [c]:tabattach[c]
     * add [c]:keepalt[c]
     * add [c]:styledisable[c], [c]:styleenable[c], and [c]:styletoggle[c]
diff --git a/vimperator/content/config.js b/vimperator/content/config.js
index 00eb6d12..d9ce1e6f 100644
--- a/vimperator/content/config.js
+++ b/vimperator/content/config.js
@@ -209,6 +209,17 @@ const config = { //{{{
         ////////////////////// COMMANDS ////////////////////////////////////////////////
         /////////////////////////////////////////////////////////////////////////////{{{
 
+        commands.add(["on[ly]"],
+            "Close all other windows",
+            function ()
+            {
+                liberator.windows.forEach(function (win) {
+                    if (win != window)
+                        win.close();
+                });
+            },
+            { argCount: "0" });
+
         commands.add(["pref[erences]", "prefs"],
             "Show " + config.hostApplication + " preferences",
             function (args)
diff --git a/vimperator/locale/en-US/browsing.txt b/vimperator/locale/en-US/browsing.txt
index b00997b2..79f0adce 100644
--- a/vimperator/locale/en-US/browsing.txt
+++ b/vimperator/locale/en-US/browsing.txt
@@ -323,6 +323,13 @@ Close window.
 ________________________________________________________________________________
 
 
+|:on| |:only|
+||:on[ly]||
+________________________________________________________________________________
+Close all other windows.
+________________________________________________________________________________
+
+
 |:xa| |:xall| |:wq| |:wqa| |:wqall|
 ||:wqa[ll]|| +
 ||:xa[ll]||
diff --git a/vimperator/locale/en-US/index.txt b/vimperator/locale/en-US/index.txt
index bd0d76ce..c532e549 100644
--- a/vimperator/locale/en-US/index.txt
+++ b/vimperator/locale/en-US/index.txt
@@ -221,6 +221,7 @@ section::Ex{nbsp}commands[ex-cmd-index,:index]
 ||[c]:nohlsearch[c]|| Remove the search highlighting +
 ||[c]:noremap[c]|| Map a key sequence without remapping keys +
 ||[c]:normal[c]|| Execute Normal mode commands +
+||[c]:only[c]|| Close all other windows +
 ||[c]:open[c]|| Open one or more URLs in the current tab +
 ||[c]:optionusage[c]|| List all options with a short description +
 ||[c]:pageinfo[c]|| Show various page information +