Follow these quick steps and get protected! Comcast.net email address and password are required to continue. Find my email address.
Have your Comcast ID or Comcast.net email address and password ready.
- If you don't know your email address, find it using the telephone number associated with your account.
- Forgot or lost your password? Reset it now.
Uninstall any existing security software from your computer, including previous versions of Norton.
For more information on this topic, please visit our Help and Support forums.
Make sure your Intel-based MacBook, MacBook Pro or MacBook Air is running any one of these OS X® versions (64-bit systems only).
- Mac OS X 10.9 (Mavericks)
- Mac OS X 10.8 (Mountain Lion)
- Mac OS X 10.7 (Lion)
- Mac OS X 10.6 (Snow Leopard)
- Mac OS X 10.5 (Leopard)
Minimum Hardware Requirements:
- Mac system with Intel® Core 2 Duo processor
- 2GB of RAM (required for Mac OS X 10.7)
- 1.5GB of available hard disk space
- Internet connection required for LiveUpdate
Instant Messaging Client Support for Confidential Data Filtering:
- iChat® 4.x
- Microsoft® Messenger 7.0.2 for Mac
- Yahoo!® Instant Messenger 3.0.0 for Mac beta
- AIM® for Mac 2.0b
Frequently Asked Questions
How do I switch from a paid Norton subscription to the Comcast subscription if I want to use Norton Internet Security offered at no additional cost?
To switch from a paid Norton subscription to the subscription offered at no additional cost through Comcast, please click here to chat with one of our customer support representatives.
Downloading the Norton Internet Security:
Xfinity Internet customers can download Norton Internet Security by doing the following:
Why does Norton ask me to restart my computer?
You will be asked to restart your computer during the Norton Internet Security installation process in order to remove any existing security software. If you choose to not restart your computer immediately, your computer will not be protected.
Can I download Norton Internet Security on more than one device?
Yes. Norton Internet Security Suite can be downloaded on up to seven devices for residential customers.
What do I need to install Norton Internet Security?
To download Norton Internet Security, you will only need your Comcast.net email address and password. Simply download Norton Internet™ Security (click on Protection for Mac button) and enter your Comcast.net username (email address) and password when asked.
Is the offer for Norton Internet Security really available at no additional cost?
Yes. Norton Internet Security is available at no extra cost to Xfinity Internet customers. The software is included with your Xfinity Internet subscription.
How does deleting or suspending one of my Comcast.net username affect my Norton services?
Suspending one of your Comcast.net usernames will not have an effect on your Norton services; however, deleting a username may result in the device that downloaded the software with the deleted username, to receive a pop-up that indicating that the license has expired within 30 days of the user name being deleted.
What do I do if I have issues downloading the Norton Internet Security?
For help downloading the Norton Internet Security, you can visit the Norton help site, or chat with a customer support representative.
Why am I being asked to upgrade my Norton Internet Security?
Xfinity® is committed to keeping you and your family safe online. As part of our ongoing effort to provide the best technology available, we are offering the latest version of Norton Internet Security. For more information on this topic, please visit our Help and Support forums.
- Click the Download button above.
- Go through the steps, which will include removing any existing anti-virus software from your computer, and install Norton Internet Security.