Secure Online Banking.

Secure Online Banking.

Citibank supports the following Browsers & Browser settings for online banking.

Web Browsers / OS

Web Browsers / OS

You are recommended to use supported and updated browsers to ensure that your internet banking is secure.

Operating System Recommended Browser(s)

Mobile iOS 6.0.1 and newer

Safari 6 and above

Android 8 and newer

Local browser

Win Phone 8.1 and newer

Internet Explorer 11 and above

Win Phone 10

Edge 13 and above

Windows 10

Internet Explorer 11, Edge 12 and above

Windows 8.1

Internet Explorer 11

Windows 7

Internet Explorer 11, Firefox 31.3.0 ESR+ and above

Windows Vista

Chrome 49 and above, Firefox 49 and above

Windows XP SP3

Chrome 49 and above, Firefox 49 and above

Mac OS X 10.9 and newer

Safari 7 and above

Other recommended browsers

  • Google Chrome 49 and above
  • Mozilla Firefox 49 and above


We do not recommend that you download beta versions, since they are experimental and may undergo significant changes before they're released. Please only download the final version.

If you are not ready to upgrade your browser, or you do not use one of these operating systems, you can still visit our site. However, should the browser be rejected, you will need to upgrade your browser for free from the company's web site.

What is TLS

Transport Layer Security (TLS) is a protocol that provides communication security between your computer or mobile device applications and our servers. TLS is responsible for enabling privacy and integrity when data is transmitted over the Internet.

TLS 1.2

Please be advised that in order to access Citibank Online, CitiBusiness Online, and your Citi Mobile® App, your operating systems and web browsers on all your devices (desktop, mobile and tablet) must be compatible with
TLS 1.2. Some web browsers do not enable TLS 1.2 by default and you may be required to enable it manually by configuring your internet options within your web browser. To enable TLS 1.2 manually:

    Internet Explorer

  1. Open Internet Explorer.
  2. On the main menu, select Tools > Internet Options.
  3. Select the Advanced tab.
  4. Scroll down to the Security section, locate and ensure that Use TLS 1.2 is selected.
  5. Click OK.
  6. Close and restart Internet Explorer.

    Google Chrome

  1. Open Google Chrome.
  2. On the main menu, select Settings.
  3. Scroll down and select Show advanced settings.
  4. Scroll further down to the Network section and choose Change Proxy settings.
  5. Select the Advanced tab.
  6. Scroll down to the Security section, locate and ensure that Use TLS 1.2 is selected.
  7. Click OK.
  8. Close and restart Chrome.

    Mozilla Firefox

  1. Open Firefox.
  2. In the address bar, type in "about:config" and press Enter.
  3. You may see a “This might void your warranty” warning screen. Click "I'll be careful, I promise".
  4. In the search box above, type in "security.tls.version".
  5. Double click security.tls.version.max and set the
    value to 3.
  6. Double click security.tls.version.min and set the
    value to 3.
  7. Click OK.
  8. Close and restart Firefox.

How can I tell which browser version I am using?

Internet Explorer - Menu > Help > About Internet Explorer
Google Chrome - More > Help > About Google Chrome
Mozilla Firefox - Menu > Help > About Mozilla Firefox
Safari - Safari > About Safari

If you do not use a compatible operating system and web browser with TLS 1.2 by April 28th, 2018 you will not be able to connect to Citibank Online and may be presented with the following error page:

Error Page