diff --git a/extensions/firefox/bootstrap.js b/extensions/firefox/bootstrap.js
index 8dc13275a..5384a05df 100644
--- a/extensions/firefox/bootstrap.js
+++ b/extensions/firefox/bootstrap.js
@@ -1,31 +1,36 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 let Cc = Components.classes;
 let Ci = Components.interfaces;
 let Cm = Components.manager;
 let Cu = Components.utils;
 
-Cu.import("resource://gre/modules/Services.jsm");
+Cu.import('resource://gre/modules/Services.jsm');
 
 function log(str) {
-  dump(str + "\n");
-};
+  dump(str + '\n');
+}
 
 function startup(aData, aReason) {
-  let manifestPath = "chrome.manifest";
-  let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsILocalFile);
+  let manifestPath = 'chrome.manifest';
+  let file = Cc['@mozilla.org/file/local;1'].createInstance(Ci.nsILocalFile);
   try {
     file.initWithPath(aData.installPath.path);
     file.append(manifestPath);
     Cm.QueryInterface(Ci.nsIComponentRegistrar).autoRegister(file);
-  } catch(e) {
+  } catch (e) {
     log(e);
   }
-};
+}
 
 function shutdown(aData, aReason) {
-};
+}
 
 function install(aData, aReason) {
-  let url = "chrome://pdf.js/content/web/viewer.html?file=%s";
-  Services.prefs.setCharPref("extensions.pdf.js.url", url);
-};
+  let url = 'chrome://pdf.js/content/web/viewer.html?file=%s';
+  Services.prefs.setCharPref('extensions.pdf.js.url', url);
+}
 
diff --git a/extensions/firefox/components/pdfContentHandler.js b/extensions/firefox/components/pdfContentHandler.js
index bafb83b12..92b663455 100644
--- a/extensions/firefox/components/pdfContentHandler.js
+++ b/extensions/firefox/components/pdfContentHandler.js
@@ -1,28 +1,33 @@
+/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
+
+'use strict';
+
 const Cc = Components.classes;
 const Ci = Components.interfaces;
 const Cr = Components.results;
 const Cu = Components.utils;
 
-const PDF_CONTENT_TYPE = "application/pdf";
+const PDF_CONTENT_TYPE = 'application/pdf';
 
-Cu.import("resource://gre/modules/XPCOMUtils.jsm");
-Cu.import("resource://gre/modules/Services.jsm");
+Cu.import('resource://gre/modules/XPCOMUtils.jsm');
+Cu.import('resource://gre/modules/Services.jsm');
 
 // TODO
 // Add some download progress event
 
 function log(aMsg) {
-  let msg = "pdfContentHandler.js: " + (aMsg.join ? aMsg.join("") : aMsg);
-  Cc["@mozilla.org/consoleservice;1"].getService(Ci.nsIConsoleService)
+  let msg = 'pdfContentHandler.js: ' + (aMsg.join ? aMsg.join('') : aMsg);
+  Cc['@mozilla.org/consoleservice;1'].getService(Ci.nsIConsoleService)
                                      .logStringMessage(msg);
-  dump(msg + "\n");
-};
+  dump(msg + '\n');
+}
 
 function loadDocument(aWindow, aDocumentUrl) {
-  let xhr = Cc["@mozilla.org/xmlextras/xmlhttprequest;1"]
+  let xhr = Cc['@mozilla.org/xmlextras/xmlhttprequest;1']
               .createInstance(Ci.nsIXMLHttpRequest);
-  xhr.open("GET", aDocumentUrl);
-  xhr.mozResponseType = xhr.responseType = "arraybuffer";
+  xhr.open('GET', aDocumentUrl);
+  xhr.mozResponseType = xhr.responseType = 'arraybuffer';
   xhr.onreadystatechange = function() {
     if (xhr.readyState == 4 && xhr.status == 200) {
       let data = (xhr.mozResponseArrayBuffer || xhr.mozResponse ||
@@ -30,23 +35,23 @@ function loadDocument(aWindow, aDocumentUrl) {
       try {
         var view = new Uint8Array(data);
 
-        // I think accessing aWindow.wrappedJSObject returns a 
+        // I think accessing aWindow.wrappedJSObject returns a
         // XPCSafeJSObjectWrapper and so it is safe but mrbkap can confirm that
         let window = aWindow.wrappedJSObject;
         var arrayBuffer = new window.ArrayBuffer(data.byteLength);
         var view2 = new window.Uint8Array(arrayBuffer);
         view2.set(view);
 
-        let evt = window.document.createEvent("CustomEvent");
-        evt.initCustomEvent("pdfloaded", false, false, arrayBuffer);
+        let evt = window.document.createEvent('CustomEvent');
+        evt.initCustomEvent('pdfloaded', false, false, arrayBuffer);
         window.document.dispatchEvent(evt);
-      } catch(e) {
-        log("Error - " + e);
+      } catch (e) {
+        log('Error - ' + e);
       }
     }
   };
   xhr.send(null);
-};
+}
 
 let WebProgressListener = {
   init: function(aWindow, aUrl) {
@@ -64,11 +69,12 @@ let WebProgressListener = {
                               .getInterface(Ci.nsIWebProgress);
     try {
       webProgress.removeProgressListener(this);
-    } catch(e) {}
+    } catch (e) {}
     webProgress.addProgressListener(this, flags);
   },
 
-  onStateChange: function onStateChange(aWebProgress, aRequest, aStateFlags, aStatus) {
+  onStateChange: function onStateChange(aWebProgress, aRequest, aStateFlags,
+                                        aStatus) {
     const complete = Ci.nsIWebProgressListener.STATE_IS_WINDOW +
                      Ci.nsIWebProgressListener.STATE_STOP;
     if ((aStateFlags & complete) == complete && this._locationHasChanged) {
@@ -77,14 +83,17 @@ let WebProgressListener = {
     }
   },
 
-  onProgressChange: function onProgressChange(aWebProgress, aRequest, aCurSelf, aMaxSelf, aCurTotal, aMaxTotal) {
+  onProgressChange: function onProgressChange(aWebProgress, aRequest, aCurSelf,
+                                              aMaxSelf, aCurTotal, aMaxTotal) {
   },
 
-  onLocationChange: function onLocationChange(aWebProgress, aRequest, aLocationURI) {
+  onLocationChange: function onLocationChange(aWebProgress, aRequest,
+                                              aLocationURI) {
     this._locationHasChanged = true;
   },
 
-  onStatusChange: function onStatusChange(aWebProgress, aRequest, aStatus, aMessage) {
+  onStatusChange: function onStatusChange(aWebProgress, aRequest, aStatus,
+                                          aMessage) {
   },
 
   onSecurityChange: function onSecurityChange(aWebProgress, aRequest, aState) {
@@ -127,16 +136,16 @@ pdfContentHandler.prototype = {
     WebProgressListener.init(window, uri.spec);
 
     try {
-      let url = Services.prefs.getCharPref("extensions.pdf.js.url");
-      url = url.replace("%s", uri.spec);
+      let url = Services.prefs.getCharPref('extensions.pdf.js.url');
+      url = url.replace('%s', uri.spec);
       window.location = url;
-    } catch(e) {
-      log("Error - " + e);
+    } catch (e) {
+      log('Error - ' + e);
     }
   },
 
-  classID: Components.ID("{2278dfd0-b75c-11e0-8257-1ba3d93c9f1a}"),
-  QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentHandler]),
+  classID: Components.ID('{2278dfd0-b75c-11e0-8257-1ba3d93c9f1a}'),
+  QueryInterface: XPCOMUtils.generateQI([Ci.nsIContentHandler])
 };
 
 var NSGetFactory = XPCOMUtils.generateNSGetFactory([pdfContentHandler]);
diff --git a/pdf.js b/pdf.js
index 7129c53e9..c173166c8 100644
--- a/pdf.js
+++ b/pdf.js
@@ -3830,7 +3830,7 @@ var Catalog = (function catalogCatalog() {
 })();
 
 var PDFDoc = (function pdfDoc() {
-  function constructor(arg, callback) {    
+  function constructor(arg, callback) {
     // Stream argument
     if (typeof arg.isStream !== 'undefined') {
       init.call(this, arg);
@@ -3841,10 +3841,10 @@ var PDFDoc = (function pdfDoc() {
     }
     else {
       error('Unknown argument type');
-    }    
+    }
   }
 
-  function init(stream){
+  function init(stream) {
     assertWellFormed(stream.length > 0, 'stream must have data');
     this.stream = stream;
     this.setup();
@@ -3865,7 +3865,7 @@ var PDFDoc = (function pdfDoc() {
     stream.pos += index;
     return true; /* found */
   }
-  
+
   constructor.prototype = {
     get linearization() {
       var length = this.stream.length;