Other ways to say the default browser agent task checks when the default changes from { -brand-short-name } to another browser. if the change happens under suspicious circumstances, it will prompt users to change back to { -brand-short-name } no more than two times. this task is installed automatically by { -brand-short-name }, and is reinstalled when { -brand-short-name } updates. to disable this task, update the “default-browser-agent.enabled” preference on the about:config page or the { -brand-short-name } enterprise policy setting “disabledefaultbrowseragent”.