diff --git a/app/extensions/brave/content/scripts/brave-about.js b/app/extensions/brave/content/scripts/brave-about.js
new file mode 100644
index 00000000000..5c213be8540
--- /dev/null
+++ b/app/extensions/brave/content/scripts/brave-about.js
@@ -0,0 +1,61 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+(function () {
+  const ipcRenderer = chrome.ipc
+  window.addEventListener('dispatch-action', (e) => {
+    ipcRenderer.send('dispatch-action', e.detail)
+  })
+  window.addEventListener('change-setting', (e) => {
+    ipcRenderer.send('change-setting', e.detail.key, e.detail.value)
+  })
+  window.addEventListener('change-site-setting', (e) => {
+    ipcRenderer.send('change-site-setting', e.detail.hostPattern, e.detail.key, e.detail.value)
+  })
+  window.addEventListener('cert-error-accepted', (e) => {
+    ipcRenderer.send('cert-error-accepted', e.detail.url)
+  })
+  window.addEventListener('get-cert-error-detail', (e) => {
+    ipcRenderer.send('get-cert-error-detail', e.detail.url)
+  })
+  window.addEventListener('new-frame', (e) => {
+    ipcRenderer.sendToHost('new-frame', e.detail.frameOpts, e.detail.openInForeground)
+  })
+  window.addEventListener('context-menu-opened', (e) => {
+    ipcRenderer.sendToHost('context-menu-opened', e.detail.nodeProps, e.detail.contextMenuType)
+  })
+  window.addEventListener('move-site', (e) => {
+    ipcRenderer.send('move-site', e.detail.sourceDetail, e.detail.destinationDetail, e.detail.prepend, e.detail.destinationIsParent)
+  })
+  window.addEventListener('open-download-path', (e) => {
+    ipcRenderer.send('open-download-path', e.detail.download)
+  })
+  window.addEventListener('decrypt-password', (e) => {
+    ipcRenderer.send('decrypt-password', e.detail.encryptedPassword, e.detail.authTag, e.detail.iv, e.detail.id)
+  })
+  window.addEventListener('set-clipboard', (e) => {
+    ipcRenderer.send('set-clipboard', e.detail)
+  })
+  window.addEventListener('show-notification', (e) => {
+    ipcRenderer.send('show-notification', e.detail)
+  })
+  window.addEventListener('set-resource-enabled', (e) => {
+    ipcRenderer.send('set-resource-enabled', e.detail.resourceName, e.detail.enabled)
+  })
+  window.addEventListener('delete-password', (e) => {
+    ipcRenderer.send('delete-password', e.detail)
+  })
+  window.addEventListener('delete-password-site', (e) => {
+    ipcRenderer.send('delete-password-site', e.detail)
+  })
+  window.addEventListener('clear-passwords', (e) => {
+    ipcRenderer.send('clear-passwords')
+  })
+  window.addEventListener('request-language', (e) => {
+    ipcRenderer.send('request-language')
+  })
+  window.addEventListener('check-flash-installed', (e) => {
+    ipcRenderer.send('check-flash-installed')
+  })
+}).apply(this)
diff --git a/app/extensions/brave/locales/en-US/app.properties b/app/extensions/brave/locales/en-US/app.properties
index 46ab66a6624..3599208c618 100644
--- a/app/extensions/brave/locales/en-US/app.properties
+++ b/app/extensions/brave/locales/en-US/app.properties
@@ -25,6 +25,7 @@ certErrorText=This site cannot be loaded due to a certificate error:
 certErrorAdvanced=Advanced settings
 certErrorSafety=Back to safety
 certErrorButtonText=Ignore certificate error (dangerous!)
+certErrorShowCertificate=Show Certificate
 safebrowsingError=Dangerous Site Blocked
 safebrowsingErrorText=For your safety, Brave has blocked this site because it is distributing malware or stealing login credentials.
 safebrowsingErrorAdvanced=Advanced
diff --git a/app/index.js b/app/index.js
index dea1e3d6664..53bf2f3de42 100644
--- a/app/index.js
+++ b/app/index.js
@@ -55,6 +55,7 @@ let lastWindowClosed = false
 
 // Domains to accept bad certs for. TODO: Save the accepted cert fingerprints.
 let acceptCertDomains = {}
+let errorCerts = {}
 // URLs to callback for auth.
 let authCallbacks = {}
 // Don't show the keytar prompt more than once per 24 hours
@@ -208,6 +209,15 @@ app.on('ready', () => {
       return
     }
 
+    errorCerts[url] = {
+      subjectName: cert.subjectName,
+      issuerName: cert.issuerName,
+      serialNumber: cert.serialNumber,
+      validStart: cert.validStart,
+      validExpiry: cert.validExpiry,
+      fingerprint: cert.fingerprint
+    }
+
     // Tell the page to show an unlocked icon. Note this is sent to the main
     // window webcontents, not the webview webcontents
     let sender = webContents.hostWebContents || webContents
@@ -447,6 +457,19 @@ app.on('ready', () => {
       }
     })
 
+    ipcMain.on(messages.GET_CERT_ERROR_DETAIL, (event, url) => {
+      if (errorCerts[url]) {
+        event.sender.send(messages.SET_CERT_ERROR_DETAIL, {
+          subjectName: errorCerts[url].subjectName,
+          issuerName: errorCerts[url].issuerName,
+          serialNumber: errorCerts[url].serialNumber,
+          validStart: errorCerts[url].validStart,
+          validExpiry: errorCerts[url].validExpiry,
+          fingerprint: errorCerts[url].fingerprint
+        })
+      }
+    })
+
     // save app state every 5 minutes regardless of update frequency
     setInterval(initiateSessionStateSave, 1000 * 60 * 5)
     AppStore.addChangeListener(() => {
diff --git a/js/about/aboutActions.js b/js/about/aboutActions.js
index 380719db8fa..f55374b224a 100644
--- a/js/about/aboutActions.js
+++ b/js/about/aboutActions.js
@@ -65,6 +65,15 @@ const AboutActions = {
     ipc.send(messages.CERT_ERROR_ACCEPTED, url)
   },
 
+  /**
+   * Get certificate detail when error.
+   *
+   * @param {string} url - The URL with the cert error
+   */
+  getCertErrorDetail: function (url) {
+    ipc.send(messages.GET_CERT_ERROR_DETAIL, url)
+  },
+
   /**
    * Opens a context menu
    */
diff --git a/js/about/certerror.js b/js/about/certerror.js
index 5793edc59ea..1c7e1d841f4 100644
--- a/js/about/certerror.js
+++ b/js/about/certerror.js
@@ -6,17 +6,67 @@ const React = require('react')
 const Button = require('../components/button')
 const aboutActions = require('./aboutActions')
 const WindowConstants = require('../constants/windowConstants')
+const messages = require('../constants/messages')
+const ipc = window.chrome.ipc
 
 require('../../less/button.less')
 require('../../less/window.less')
 require('../../less/about/error.less')
 
+function toHexString (byteArray) {
+  return byteArray.map(function (byte) {
+    return ('0' + (byte & 0xFF).toString(16)).slice(-2)
+  }).join(':')
+}
+
+function toByteArray (str) {
+  var bytes = []
+  for (var i = 0; i < str.length; ++i) {
+    bytes.push(str.charCodeAt(i))
+  }
+  return bytes
+}
+
+function seperateHex (hexStr) {
+  var result = []
+  for (var i = 0; i < hexStr.length; ++i) {
+    result += hexStr[i]
+    if (i % 2 && i !== hexStr.length - 1) {
+      result += ':'
+    }
+  }
+  return result
+}
+
 class CertErrorPage extends React.Component {
   constructor () {
     super()
     this.state = {
-      advanced: false
+      advanced: false,
+      certDetail: false,
+      certIssuerName: null,
+      certSubjectName: null,
+      certSerialNumber: null,
+      certValidStart: null,
+      certValidExpiry: null,
+      certFingerprint: null
     }
+
+    ipc.on(messages.SET_CERT_ERROR_DETAIL, (e, detail) => {
+      var validStart = new Date()
+      var validExpiry = new Date()
+      validStart.setTime(detail.validStart * 1000)
+      validExpiry.setTime(detail.validExpiry * 1000)
+      this.setState({
+        certDetail: true,
+        certIssuerName: detail.issuerName,
+        certSubjectName: detail.subjectName,
+        certSerialNumber: seperateHex(detail.serialNumber),
+        certValidStart: validStart.toString(),
+        certValidExpiry: validExpiry.toString(),
+        certFingerprint: detail.fingerprint.split('/')
+      })
+    })
   }
 
   onAccept () {
@@ -40,6 +90,10 @@ class CertErrorPage extends React.Component {
     this.setState({advanced: true})
   }
 
+  onDetail () {
+    aboutActions.getCertErrorDetail(this.state.url)
+  }
+
   render () {
     return <div className='errorContent'>
       <svg width='75' height='75' className='errorLogo' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'>
@@ -49,12 +103,29 @@ class CertErrorPage extends React.Component {
         <span data-l10n-id='certErrorText'></span>&nbsp;
         <span className='errorUrl'>{this.state.url || ''}</span>
         <span className='errorText'>{this.state.error || ''}</span>
+        {this.state.certDetail
+          ? (<div>
+            <span className='certErrorText'>{'Issued To'}</span>
+            <span className='errorText'>{'Common Name (CN): ' + this.state.certSubjectName}</span>
+            <span className='errorText'>{'Serial Number: ' + this.state.certSerialNumber}</span>
+            <span className='certErrorText'>{'Issued By'}</span>
+            <span className='errorText'>{'Common Name (CN): ' + this.state.certIssuerName}</span>
+            <span className='certErrorText'>{'Period of Validity'}</span>
+            <span className='errorText'>{'Begins On: ' + this.state.certValidStart}</span>
+            <span className='errorText'>{'Expires On: ' + this.state.certValidExpiry}</span>
+            <span className='certErrorText'>{'Fingerprint: '}</span>
+            <span className='errorText'>{this.state.certFingerprint[0] + ': ' +
+              toHexString(toByteArray(window.atob(this.state.certFingerprint[1])))}</span>
+          </div>) : null}
       </div>
       <div className='buttons'>
         <Button l10nId='certErrorSafety' className='actionButton' onClick={this.onSafety.bind(this)} />
-        {this.state.url ? (this.state.advanced
-                  ? <Button l10nId='certErrorButtonText' className='subtleButton' onClick={this.onAccept.bind(this)} />
-                  : <Button l10nId='certErrorAdvanced' className='subtleButton' onClick={this.onAdvanced.bind(this)} />) : null}
+          {this.state.url ? (this.state.advanced
+            ? (<div>
+              <Button l10nId='certErrorButtonText' className='subtleButton' onClick={this.onAccept.bind(this)} />
+              <Button l10nId='certErrorShowCertificate' className='subtleButton' onClick={this.onDetail.bind(this)} />
+            </div>)
+            : <Button l10nId='certErrorAdvanced' className='subtleButton' onClick={this.onAdvanced.bind(this)} />) : null}
       </div>
     </div>
   }
diff --git a/js/constants/messages.js b/js/constants/messages.js
index c4df60172d6..b849a941451 100644
--- a/js/constants/messages.js
+++ b/js/constants/messages.js
@@ -120,6 +120,8 @@ const messages = {
   // HTTPS
   CERT_ERROR_ACCEPTED: _, /** @arg {string} url where a cert error was accepted */
   CHECK_CERT_ERROR_ACCEPTED: _, /** @arg {string} url to check cert error, @arg {number} key of frame */
+  GET_CERT_ERROR_DETAIL: _,
+  SET_CERT_ERROR_DETAIL: _,
   SET_SECURITY_STATE: _, /** @arg {number} key of frame, @arg {Object} security state */
   HTTPSE_RULE_APPLIED: _, /** @arg {string} name of ruleset file, @arg {Object} details of rewritten request */
   // Bookmarks