diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index a5ba883..2412b76 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,5 +1,45 @@
 module ApplicationHelper
+  
+  
   def lighthouse_tracker? object
     object.issue_tracker_type == "lighthouseapp"
   end
+  
+  
+  def user_agent_graph(error)
+    tallies = tally(error.notices) {|notice| pretty_user_agent(notice.user_agent)}
+    create_percentage_table(tallies, :total => error.notices.count)
+  end
+  
+  def pretty_user_agent(user_agent)
+    (user_agent.nil? || user_agent.none?) ? "N/A" : "#{user_agent.browser} #{user_agent.version}"
+  end
+  
+  
+  def tally(collection, &block)
+    collection.inject({}) do |tallies, item|
+      value = yield item
+      tallies[value] = (tallies[value] || 0) + 1
+      tallies
+    end
+  end
+  
+  
+  def create_percentage_table(tallies, options={})
+    total   = (options[:total] || total_from_tallies(tallies))
+    percent = 100.0 / total.to_f
+    rows    = tallies.map {|value, count| [(count.to_f * percent), value]} \
+                     .sort {|a, b| a[0] <=> b[0]}
+    render :partial => "errs/tally_table", :locals => {:rows => rows}
+  end
+  
+  
+private
+  
+  
+  def total_from_tallies(tallies)
+    tallies.values.inject(0) {|sum, n| sum + n}
+  end
+  
+  
 end
diff --git a/app/views/errs/_tally_table.html.haml b/app/views/errs/_tally_table.html.haml
new file mode 100644
index 0000000..bf54ce5
--- /dev/null
+++ b/app/views/errs/_tally_table.html.haml
@@ -0,0 +1,5 @@
+%table.tally
+  - rows.each do |row|
+    %tr
+      %td.percent= number_to_percentage(row[0], :precision => 1)
+      %th.value= row[1]
diff --git a/app/views/notices/_summary.html.haml b/app/views/notices/_summary.html.haml
index 06889e6..d38b79a 100644
--- a/app/views/notices/_summary.html.haml
+++ b/app/views/notices/_summary.html.haml
@@ -15,4 +15,7 @@
       %td= notice.created_at.to_s(:micro)
     %tr
       %th Similar
-      %td= notice.err.notices.count - 1
\ No newline at end of file
+      %td= notice.err.notices.count - 1
+    %tr
+      %th Browser
+      %td= user_agent_graph(notice.err)
\ No newline at end of file
diff --git a/public/stylesheets/application.css b/public/stylesheets/application.css
index 41ac340..6886a2e 100644
--- a/public/stylesheets/application.css
+++ b/public/stylesheets/application.css
@@ -562,7 +562,7 @@ table.errs td.app .environment {
 table.errs td.message a { 
   width: 420px;
   display: block;
-   word-wrap: break-word;
+  word-wrap: break-word;
 }
 table.errs td.message em {
   color: #727272;
@@ -574,6 +574,27 @@ table.errs tr.resolved td > * {
   -webkit-opacity: 0.5;
 }
 
+/* Tally tables */
+table.tally {
+  border:none;
+}
+table.tally td,
+table.tally th {
+  border:none !important;
+  background:none !important;
+  padding:8px 0 0;
+}
+table.tally tbody tr:first-child td,
+table.tally tbody tr:first-child th {
+  padding-top:0;
+}
+table.tally td.percent {
+  width:4.5em;
+}
+table.tally th.value {
+  text-transform:none;
+}
+
 /* Resolve Errs */
 #action-bar a.resolve {
   background: transparent url(images/icons/thumbs-up.png) 6px 5px no-repeat;
--
libgit2 0.21.2