Adjust background tabs max update interval down to 5 minutes instead of 10.

4chan_x.user.js

@@ -3004,7 +3004,7 @@
       if (!(d.hidden || d.oHidden || d.mozHidden || d.webkitHidden)) {
         j = Math.min(j, 6);
       }
-      return Math.max(i, [5, 10, 15, 20, 30, 60, 90, 120, 300, 600][j]);
+      return Math.max(i, [5, 10, 15, 20, 30, 60, 90, 120, 240, 300][j]);
     },
     timeout: function() {
       var n;

changelog

@@ -1,5 +1,6 @@
 master
 - Mayhem
+  Adjust background tabs max update interval down to 5 minutes instead of 10.
   Divide the Delete Link in the Menu into a Post and Image deletion links.
   The Delete Links in the Menu now have a cooldown.
 

script.coffee

@@ -2409,7 +2409,7 @@ Updater =
     unless d.hidden or d.oHidden or d.mozHidden or d.webkitHidden
       # Don't increase the refresh rate too much on visible tabs.
       j = Math.min j, 6
-    Math.max i, [5, 10, 15, 20, 30, 60, 90, 120, 300, 600][j]
+    Math.max i, [5, 10, 15, 20, 30, 60, 90, 120, 240, 300][j]
 
   timeout: ->
     Updater.timeoutID = setTimeout Updater.timeout, 1000