diff --git a/doc-src/SASS_CHANGELOG.md b/doc-src/SASS_CHANGELOG.md
index affd224951..8f37526297 100644
--- a/doc-src/SASS_CHANGELOG.md
+++ b/doc-src/SASS_CHANGELOG.md
@@ -28,6 +28,11 @@ In anticipation of wider browser support, in fact,
 *any* function named `-*-calc` (such as `-webkit-calc` or `-ms-calc`)
 will be parsed the same as the `calc` function.
 
+## `:-moz-any` Support
+
+The [`:-moz-any` pseudoclass selector](http://hacks.mozilla.org/2010/05/moz-any-selector-grouping/)
+is now parsed by Sass.
+
 ## Rails 3 Support
 
 Support for Rails 3 versions prior to beta 4 has been removed.
diff --git a/lib/sass/scss/parser.rb b/lib/sass/scss/parser.rb
index 9778c23b77..de4aa383d7 100644
--- a/lib/sass/scss/parser.rb
+++ b/lib/sass/scss/parser.rb
@@ -544,12 +544,12 @@ def pseudo_expr
       end
 
       def negation
-        return unless tok(NOT)
+        return unless name = tok(NOT) || tok(MOZ_ANY)
         ss
         @expected = "selector"
         sel = selector_comma_sequence
         tok!(/\)/)
-        Selector::Negation.new(sel)
+        Selector::SelectorPseudoClass.new(name[1...-1], sel)
       end
 
       def declaration
diff --git a/lib/sass/scss/rx.rb b/lib/sass/scss/rx.rb
index 386b716c92..a14bdb490a 100644
--- a/lib/sass/scss/rx.rb
+++ b/lib/sass/scss/rx.rb
@@ -109,6 +109,7 @@ def self.quote(str, flags = 0)
       # Custom
       HEXCOLOR = /\#[0-9a-fA-F]+/
       INTERP_START = /#\{/
+      MOZ_ALL = quote(":-moz-any(", Regexp::IGNORECASE)
 
       STRING1_NOINTERP = /\"((?:[^\n\r\f\\"#]|#(?!\{)|\\#{NL}|#{ESCAPE})*)\"/
       STRING2_NOINTERP = /\'((?:[^\n\r\f\\'#]|#(?!\{)|\\#{NL}|#{ESCAPE})*)\'/
diff --git a/lib/sass/selector.rb b/lib/sass/selector.rb
index ac41e02c67..027e90b628 100644
--- a/lib/sass/selector.rb
+++ b/lib/sass/selector.rb
@@ -332,21 +332,29 @@ def unify(sels)
       end
     end
 
-    # A negation pseudoclass selector (e.g. `:not(.foo)`).
-    class Negation < Simple
-      # The selector to negate.
+    # A pseudoclass selector whose argument is itself a selector
+    # (e.g. `:not(.foo)` or `:-moz-all(.foo, .bar)`).
+    class SelectorPseudoClass < Simple
+      # The name of the pseudoclass.
+      #
+      # @return [String]
+      attr_reader :name
+
+      # The selector argument.
       #
       # @return [Selector::Sequence]
       attr_reader :selector
 
-      # @param [Selector::Sequence] The selector to negate
-      def initialize(selector)
+      # @param [String] The name of the pseudoclass
+      # @param [Selector::Sequence] The selector argument
+      def initialize(name, selector)
+        @name = name
         @selector = selector
       end
 
       # @see Selector#to_a
       def to_a
-        [":not("] + @selector.to_a + [")"]
+        [":", @name, "("] + @selector.to_a + [")"]
       end
     end
   end
diff --git a/lib/sass/selector/simple.rb b/lib/sass/selector/simple.rb
index f346cf64d0..b2e8099a57 100644
--- a/lib/sass/selector/simple.rb
+++ b/lib/sass/selector/simple.rb
@@ -78,10 +78,10 @@ def unify(sels)
         return sels if sels.any? {|sel2| eql?(sel2)}
         sels_with_ix = Haml::Util.enum_with_index(sels)
         _, i =
-          if self.is_a?(Pseudo) || self.is_a?(Negation)
+          if self.is_a?(Pseudo) || self.is_a?(SelectorPseudoClass)
             sels_with_ix.find {|sel, _| sel.is_a?(Pseudo) && sels.last.type == :element}
           else
-            sels_with_ix.find {|sel, _| sel.is_a?(Pseudo) || sel.is_a?(Negation)}
+            sels_with_ix.find {|sel, _| sel.is_a?(Pseudo) || sel.is_a?(SelectorPseudoClass)}
           end
         return sels + [self] unless i
         return sels[0...i] + [self] + sels[i..-1]
diff --git a/test/sass/scss/css_test.rb b/test/sass/scss/css_test.rb
index 05908ea0d7..28fd0aaf40 100755
--- a/test/sass/scss/css_test.rb
+++ b/test/sass/scss/css_test.rb
@@ -714,6 +714,12 @@ def test_negation_selectors
     assert_selector_parses(':not(h1, h2, h3)')
   end
 
+  def test_moz_any_selector
+    assert_selector_parses(':-moz-any(h1, h2, h3)')
+    assert_selector_parses(':-moz-any(.foo)')
+    assert_selector_parses(':-moz-any(foo bar, .baz > .bang)')
+  end
+
   def test_namespaced_selectors
     assert_selector_parses('foo|E')
     assert_selector_parses('*|E')