UMUC opening at 10:00 a.m. on 3/22

Due to inclement weather, UMUC Maryland and Quantico locations will open at 10:00 a.m. on 3/22 and on-site morning classes are cancelled. Online classes are not affected. For updates, visit or call 301-985-SNOW.

LEO: Technical Requirements

See also: LEO: Mobile Device Technical Requirements

Browser Requirements

Your browser must allow cookies, Javascript, and pop-ups. (Instructions are provided below.) Check your settings at  

Note: Maintenance Versions are older browser versions that may not perform properly in LEO. 

Microsoft Edge:

  • Supported Versions: n/a
  • Maintenance Versions: None

Microsoft Internet Explorer:

  • Supported Versions: Latest
  • Maintenance Versions: 11 and older

Mozilla Firefox:

  • Supported Versions: Latest (v. 50), ESR
  • Maintenance Versions: None

Google Chrome:

  • Supported Versions: Latest (v. 54)
  • Maintenance Versions: None

Apple Safari:

  • Supported Versions: Latest
  • Maintenance Versions: None
Browsers: How do I turn off pop-up blockers?
Browsers: How do I enable cookies?

Additional Requirements

The following services have additional requirements: