diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05d664ad8..0b521584b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
 - Enforce minimum values for gas price and gas limit.
 - Fix bug where total gas was sometimes not live-updated.
 - Fix bug where editing gas value could have some abrupt behaviors (#1233)
+- Add Kovan as an option on our network list.
 
 ## 3.4.0 2017-3-8
 
diff --git a/app/scripts/config.js b/app/scripts/config.js
index b4541a04a..ec421744d 100644
--- a/app/scripts/config.js
+++ b/app/scripts/config.js
@@ -1,5 +1,6 @@
 const MAINET_RPC_URL = 'https://mainnet.infura.io/metamask'
 const TESTNET_RPC_URL = 'https://ropsten.infura.io/metamask'
+const KOVAN_RPC_URL = 'https://kovan.infura.io/metamask'
 const DEFAULT_RPC_URL = TESTNET_RPC_URL
 
 global.METAMASK_DEBUG = 'GULP_METAMASK_DEBUG'
@@ -10,5 +11,6 @@ module.exports = {
     mainnet: MAINET_RPC_URL,
     testnet: TESTNET_RPC_URL,
     morden: TESTNET_RPC_URL,
+    kovan: KOVAN_RPC_URL,
   },
 }
diff --git a/app/scripts/contentscript.js b/app/scripts/contentscript.js
index ab64dc9fa..020208ceb 100644
--- a/app/scripts/contentscript.js
+++ b/app/scripts/contentscript.js
@@ -69,14 +69,10 @@ function shouldInjectWeb3 () {
 }
 
 function isAllowedSuffix (testCase) {
-  var prohibitedTypes = ['xml', 'pdf']
-  var currentUrl = window.location.href
-  var currentRegex
-  for (let i = 0; i < prohibitedTypes.length; i++) {
-    currentRegex = new RegExp(`\.${prohibitedTypes[i]}$`)
-    if (currentRegex.test(currentUrl)) {
-      return false
-    }
+  const doctype = window.document.doctype
+  if (doctype) {
+    return doctype.name === 'html'
+  } else {
+    return false
   }
-  return true
 }
diff --git a/app/scripts/lib/config-manager.js b/app/scripts/lib/config-manager.js
index 6868637e5..e31cb45ed 100644
--- a/app/scripts/lib/config-manager.js
+++ b/app/scripts/lib/config-manager.js
@@ -5,6 +5,7 @@ const normalize = require('eth-sig-util').normalize
 const TESTNET_RPC = MetamaskConfig.network.testnet
 const MAINNET_RPC = MetamaskConfig.network.mainnet
 const MORDEN_RPC = MetamaskConfig.network.morden
+const KOVAN_RPC = MetamaskConfig.network.kovan
 
 /* The config-manager is a convenience object
  * wrapping a pojo-migrator.
@@ -150,6 +151,9 @@ ConfigManager.prototype.getCurrentRpcAddress = function () {
     case 'morden':
       return MORDEN_RPC
 
+    case 'kovan':
+      return KOVAN_RPC
+
     default:
       return provider && provider.rpcTarget ? provider.rpcTarget : TESTNET_RPC
   }
diff --git a/ui/app/accounts/import/json.js b/ui/app/accounts/import/json.js
index 1c2b331d4..5ed31ab0a 100644
--- a/ui/app/accounts/import/json.js
+++ b/ui/app/accounts/import/json.js
@@ -60,7 +60,7 @@ JsonImportSubview.prototype.render = function () {
         },
       }, 'Import'),
 
-      error ? h('span.warning', error) : null,
+      error ? h('span.error', error) : null,
     ])
   )
 }
@@ -95,4 +95,3 @@ JsonImportSubview.prototype.createNewKeychain = function () {
 
   this.props.dispatch(actions.importNewAccount('JSON File', [ fileContents, password ]))
 }
-
diff --git a/ui/app/accounts/import/private-key.js b/ui/app/accounts/import/private-key.js
index b139a0374..68ccee58e 100644
--- a/ui/app/accounts/import/private-key.js
+++ b/ui/app/accounts/import/private-key.js
@@ -48,7 +48,7 @@ PrivateKeyImportView.prototype.render = function () {
         },
       }, 'Import'),
 
-      error ? h('span.warning', error) : null,
+      error ? h('span.error', error) : null,
     ])
   )
 }
@@ -65,4 +65,3 @@ PrivateKeyImportView.prototype.createNewKeychain = function () {
   const privateKey = input.value
   this.props.dispatch(actions.importNewAccount('Private Key', [ privateKey ]))
 }
-
diff --git a/ui/app/app.js b/ui/app/app.js
index 9c1ba8a3a..5a7596aca 100644
--- a/ui/app/app.js
+++ b/ui/app/app.js
@@ -255,6 +255,15 @@ App.prototype.renderNetworkDropdown = function () {
       provider: props.provider,
     }),
 
+    h(DropMenuItem, {
+      label: 'Kovan Test Network',
+      closeMenu: () => this.setState({ isNetworkMenuOpen: false}),
+      action: () => props.dispatch(actions.setProviderType('kovan')),
+      icon: h('.menu-icon.hollow-diamond'),
+      activeNetworkRender: props.network,
+      provider: props.provider,
+    }),
+
     h(DropMenuItem, {
       label: 'Localhost 8545',
       closeMenu: () => this.setState({ isNetworkMenuOpen: false }),
diff --git a/ui/app/components/account-export.js b/ui/app/components/account-export.js
index 38a1d28ef..888196c5d 100644
--- a/ui/app/components/account-export.js
+++ b/ui/app/components/account-export.js
@@ -52,6 +52,7 @@ ExportAccountView.prototype.render = function () {
           }, [
             h('p.error', warning),
             h('input#exportAccount.sizing-input', {
+              type: 'password',
               placeholder: 'confirm password',
               onKeyPress: this.onExportKeyPress.bind(this),
               style: {
diff --git a/ui/app/components/drop-menu-item.js b/ui/app/components/drop-menu-item.js
index 9f002234e..3eb6ec876 100644
--- a/ui/app/components/drop-menu-item.js
+++ b/ui/app/components/drop-menu-item.js
@@ -42,7 +42,10 @@ DropMenuItem.prototype.activeNetworkRender = function () {
       if (providerType === 'mainnet') return h('.check', '✓')
       break
     case 'Ropsten Test Network':
-      if (provider.type === 'testnet') return h('.check', '✓')
+      if (providerType === 'testnet') return h('.check', '✓')
+      break
+    case 'Kovan Test Network':
+      if (providerType === 'kovan') return h('.check', '✓')
       break
     case 'Localhost 8545':
       if (activeNetwork === 'http://localhost:8545') return h('.check', '✓')
diff --git a/ui/app/components/network.js b/ui/app/components/network.js
index 77805fd57..d9045167f 100644
--- a/ui/app/components/network.js
+++ b/ui/app/components/network.js
@@ -40,6 +40,9 @@ Network.prototype.render = function () {
   } else if (parseInt(networkNumber) === 3) {
     hoverText = 'Ropsten Test Network'
     iconName = 'ropsten-test-network'
+  } else if (providerName === 'kovan') {
+    hoverText = 'Kovan Test Network'
+    iconName = 'kovan-test-network'
   } else {
     hoverText = 'Unknown Private Network'
     iconName = 'unknown-private-network'
@@ -70,6 +73,15 @@ Network.prototype.render = function () {
                 }},
               'Ropsten Test Net'),
             ])
+          case 'kovan-test-network':
+            return h('.network-indicator', [
+              h('.menu-icon.hollow-diamond'),
+              h('.network-name', {
+                style: {
+                  color: '#690496',
+                }},
+              'Kovan Test Net'),
+            ])
           default:
             return h('.network-indicator', [
               h('i.fa.fa-question-circle.fa-lg', {
diff --git a/ui/app/config.js b/ui/app/config.js
index 3f0507f48..444365de2 100644
--- a/ui/app/config.js
+++ b/ui/app/config.js
@@ -161,6 +161,11 @@ function currentProviderDisplay (metamaskState) {
       value = 'Ropsten Test Network'
       break
 
+    case 'kovan':
+      title = 'Current Network'
+      value = 'Kovan Test Network'
+      break
+
     default:
       title = 'Current RPC'
       value = metamaskState.provider.rpcTarget
diff --git a/ui/app/css/lib.css b/ui/app/css/lib.css
index 99c6f1b9d..670dc9fd0 100644
--- a/ui/app/css/lib.css
+++ b/ui/app/css/lib.css
@@ -188,7 +188,7 @@ hr.horizontal-line {
 
 .hollow-diamond {
   transform: rotate(45deg);
-  border: 1px solid #038789;
+  border: 3px solid #690496;
 }
 
 .pending-dot {
diff --git a/ui/lib/account-link.js b/ui/lib/account-link.js
index 77db0851d..948f32da1 100644
--- a/ui/lib/account-link.js
+++ b/ui/lib/account-link.js
@@ -1,7 +1,6 @@
 module.exports = function (address, network) {
   const net = parseInt(network)
   let link
-
   switch (net) {
     case 1: // main net
       link = `http://etherscan.io/address/${address}`
@@ -12,6 +11,9 @@ module.exports = function (address, network) {
     case 3: // ropsten test net
       link = `http://testnet.etherscan.io/address/${address}`
       break
+    case 42: // kovan test net
+      link = `http://kovan.etherscan.io/address/${address}`
+      break
     default:
       link = ''
       break
diff --git a/ui/lib/explorer-link.js b/ui/lib/explorer-link.js
index dc6be2984..7ae19cca0 100644
--- a/ui/lib/explorer-link.js
+++ b/ui/lib/explorer-link.js
@@ -5,9 +5,12 @@ module.exports = function (hash, network) {
     case 1: // main net
       prefix = ''
       break
-    case 3: // morden test net
+    case 3: // ropsten test net
       prefix = 'testnet.'
       break
+    case 42: // kovan test net
+      prefix = 'kovan.'
+      break
     default:
       prefix = ''
   }