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Browser Security

In order to continue to protect the privacy and confidentiality of taxpayers and their data, the Department of Revenue is raising its standards for securing communication between web browsers and its interactive websites (e.g., Registration, e-Services Enrollment, File and Pay). If you are using an older version of a web browser, you may be blocked from logging into Department of Revenue interactive websites. We only allow access through web browsers that utilize Transport Layer Security (TLS) versions 1.1 and 1.2.

Browser Restrictions

We have begun modifying login pages to check web browsers and determine if they meet the new standards. If your browser is outdated or below-standard, you will receive a warning message advising you to update or replace your browser.

Effective September 1, 2016, taxpayers will only be allowed to access certain e-Services websites if they are using the latest versions of the most common browsers. Users who are blocked must update their browser before they can interact with our websites.

About Internet Explorer (from the Microsoft website)

Effective January 12, 2016, only the most current version of Internet Explorer available for a supported operating system will receive technical support and security updates. Internet Explorer 11 is the last version of Internet Explorer, and will continue to receive security updates, compatibility fixes, and technical support on Windows 7, Windows 8.1, and Windows 10. According to Microsoft, without these critical browser security updates, your computer may become vulnerable to harmful viruses, spyware, and other malicious software which can steal or damage your data and information.

Because Microsoft has discontinued support, the Department of Revenue will no longer permit access to taxpayers using Internet Explorer 10, or below.

Why update your browser?

You should always keep your browser updated. Your browser's publisher provides periodic updates as issues arise or new security features are developed. Security updates patch vulnerabilities that may be exploited by malware, helping to keep users and their data safer. Regular security updates help protect computers from malicious attacks, so upgrading your browser and staying current is important. Keeping your browser updated ensures a safer, more productive interactive experience.

What browsers are acceptable and how do I update?

For optimized performance and security, you must use a browser that utilizes TLS 1.1 and TLS 1.2. The latest versions of the most common browsers, listed below, utilize TLS 1.1 and 1.2, and are acceptable for use with e-Services websites:

Make sure you're using the latest version of your browser. Check your browser version at one of these independent websites:

If you need to update your browser, you might find the articles on these independent websites helpful:

Windows XP and Vista Users

Internet Explorer 11 is not compatible with Windows XP or Windows Vista operating systems. Since Microsoft no longer supports Internet Explorer 10, there is no longer an acceptable Microsoft browser option for these two operating systems, which are also no longer supported.

Installing the latest compatible version of the Firefox browser on these operating systems is an option for enabling secure access to the Department’s interactive websites. Download and install Firefox.

Check Your Browser's Settings

Once you have updated to an acceptable browser, you should verify the applicable security settings are in place. Steps to verify and adjust the security settings for the most common browsers are:


  • Open Google Chrome
  • Click Alt+F and select Settings
  • Scroll down and select the Show advanced settings… link
  • Under the Network section, select Change proxy settings…
  • Select the Advanced tab
  • Under the Security section, locate and check Use TLS 1.1 and Use TLS 1.2
  • Select OK
  • Click the back arrow (←) or close the browser tab


  • No adjustments necessary; TLS 1.1 and 1.2 are automatically enabled in Edge.


  • Open Firefox
  • In the Search or enter address bar, type "about:config" and Enter
  • At the warranty warning, click I'll be careful, I promise!
  • Scroll down the list; select "security.tls.version.max" and Enter
  • Make sure the value is set to "3"
  • Select OK
  • Click the back arrow (←) or close the browser tab

Internet Explorer (version 11)

  • Open Internet Explorer
  • Click Alt+T and select Internet options
  • Select the Advanced tab
  • Under the Security section, locate and check Use TLS 1.1 and Use TLS 1.2
  • Select OK


  • No adjustments necessary; TLS 1.1 and 1.2 are automatically enabled in Safari version 7 or greater.

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