UMUC closed on 3/21

Due to inclement weather, UMUC Maryland and Quantico locations are closed on 3/21 and all on-site classes are cancelled. Online classes are not affected. For updates, visit or call 301-985-SNOW.

Firefox: How do I clear cache and temporary Internet files?

Step 1: Click the menu in the top right corner of Firefox and then click History.

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Step 2: Select Clear Recent History.

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Step 3: In the Time range to clear drop-down menu, select Everything.

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Step 4: Click the Clear Now button and then close and reopen Firefox.