Supported Browsers and Operating Systems

CustomShow System Requirements

CustomShow will run in any browser for Windows or Mac OS X that supports Adobe Flash Player plugin 20 or later. For optimal performance, however, we recommend the following system hardware specifications.

  • 2 Ghz processor or better
  • 2GB of RAM
  • 1GB of VRAM 

The following operating system and browsers are supported:

Windows (7/8/10)

  • Internet Explorer 6 or higher
  • Firefox 3 or higher
  • Google Chrome

Mac OS X

  • Safari 3.1 or higher
  • Firefox 3 or higher
  • Google Chrome

Regardless of browser, please make sure the following browser settings are correct:

  • Javascript must be enabled.
  • Cookies must be enabled.
  • Popup blockers should be disabled.
  • Must have at the minimum Adobe Flash Player Plugin 21.
    • They should accept and get updates to upgrade to latest version

If your browser has a section for trusted sites, please enter these two URLs:

CustomShow Desktop Viewer

  • Must have Adobe AIR installed.


If your email offers a whitelist, please add the following address:

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