diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index da2e8ce..d467b08 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -241,50 +241,3 @@
         }
     });
 })();
-
-function generateScreenshot() {
-    var css = '';
-    var svgs = document.getElementsByTagName('svg');
-    for (var i = 0; i < document.styleSheets.length; i++) {
-        if (document.styleSheets[i].href && !document.styleSheets[i].href.match(/web\-fonts/)) {
-            var rules = document.styleSheets[i].rules || document.styleSheets[i].cssRules;
-            for (var j = 0; j < rules.length; j++) {
-                cssText = rules[j].cssText;
-                if (rules[j].selectorText) {
-                    if (rules[j].selectorText.match(/(^|\s)svg[^\w]/) || cssText.match(/\s(fill|stroke(\-width)?):/)) {
-                        css += cssText;
-                    }
-                }
-            }
-        }
-    }
-    for (var i = 0; i < svgs.length; i++) {
-        var svg = svgs[i];
-        // svg.innerHTML = '<style type="text/css"><![CDATA[' + css + ']]></style>' + svg.innerHTML;
-        svg.innerHTML = '<style type="text/css"><![CDATA[' + css + ']]></style>' + svg.innerHTML;
-        svg.setAttribute('height', svg.clientHeight);
-        svg.setAttribute('width', svg.clientWidth);
-        var canvas = document.createElement('canvas');
-        canvg(canvas, svg.outerHTML);
-        console.log(svg.outerHTML);
-        svg.style.backgroundImage = 'url(' + encodeURI(canvas.toDataURL('image/png')) + ')';
-    }
-
-    html2canvas(document.body, {
-            logging: true,
-            profile: true,
-            useCORS: true}).then(function(canvas) {
-        var data = canvas.toDataURL('image/jpeg', 0.9);
-        var src = encodeURI(data);
-
-        window.open(src, '_blank');
-      
-        // reset the svg height and width
-        for (var i = 0; i < svgs.length; i++) {
-          var svg = svgs[i];
-          svg.removeAttribute('height');
-          svg.removeAttribute('width');
-          svg.removeAttribute('style');
-        }
-    });
-}
diff --git a/app/assets/javascripts/map.js b/app/assets/javascripts/map.js
index 588f543..b0dd9bb 100644
--- a/app/assets/javascripts/map.js
+++ b/app/assets/javascripts/map.js
@@ -70,7 +70,7 @@
       var annualConferences = container.append('g').attr('filter', 'url(#svg-gooey-filter)').attr('class', 'cities annual-conferences');
 
       function mouseover(e) {
-        c = document.getElementById('conference-' + event.target.getAttribute('data-c'));
+        c = document.getElementById('conference-' + d3.event.target.getAttribute('data-c'));
         tooltip.innerHTML = '<h3>' + c.querySelector('.title').innerHTML + '</h3>' +
                             '<div class="conference-details">' + c.querySelector('.conference-details').innerHTML + '</div>';
         tooltip.className = 'open';
@@ -81,7 +81,7 @@
       }
 
       function click(e) {
-        l = document.querySelector('#conference-' + event.target.getAttribute('data-c') + ' .conference-link');
+        l = document.querySelector('#conference-' + d3.event.target.getAttribute('data-c') + ' .conference-link');
         window.location.href = l.getAttribute('href');
       }
 
diff --git a/app/assets/stylesheets/_application.scss b/app/assets/stylesheets/_application.scss
index 6724dd2..304f704 100644
--- a/app/assets/stylesheets/_application.scss
+++ b/app/assets/stylesheets/_application.scss
@@ -3059,6 +3059,7 @@ $header-tilt: 8deg;
         svg {
             vertical-align: middle;
             background-color: transparent;
+            width: 100%;
             @include _(transition, background-color 1s ease-in-out);
 
             &.loaded {
diff --git a/app/assets/stylesheets/bumbleberry-settings.json b/app/assets/stylesheets/bumbleberry-settings.json
index c29efc9..c0bafee 100644
--- a/app/assets/stylesheets/bumbleberry-settings.json
+++ b/app/assets/stylesheets/bumbleberry-settings.json
@@ -8,7 +8,7 @@
             "and_chr": ["55"],
             "chrome": ["55"],
             "edge": ["13"],
-            "firefox": ["48"],
+            "firefox": ["50"],
             "ie": ["11"],
             "ios_saf": ["8", "9"]
         }
diff --git a/app/views/layouts/application.html.haml b/app/views/layouts/application.html.haml
index a06b9c0..f1d5a0f 100644
--- a/app/views/layouts/application.html.haml
+++ b/app/views/layouts/application.html.haml
@@ -20,8 +20,6 @@
       %meta{property: 'og:image', content: og_image}
     %meta{name: "theme-color", content: @theme_colour}
     = yield :head
-    = javascript_include_tag 'https://rawgit.com/niklasvh/html2canvas/master/dist/html2canvas.js'
-    = javascript_include_tag 'https://cdnjs.cloudflare.com/ajax/libs/amcharts/3.13.0/exporting/canvg.js'
 
   %body{ class: page_style }
     #primary-content