**Describe the bug** Firefox: New Navigation displays 'More' dropdown always though there is enough space to display all the items of the menu **To Reproduce** Steps to reproduce the behavior: 1. Go to www.topcoder.com/challenges 2. Check the New Navigation **Actual:** 'More' dropdown is always displayed regardless of the size of the screen in Firefox. **Expected behavior** 'More' dropdown should not be displayed when there is enough space to display all its content. **Screenshots**  **Desktop (please complete the following information):** - OS: Windows - Browser: Firefox **Additional context** This happens only in Firefox but works good in Edge