Overriding Tabs Using a Standard List Controller

Pages that use standard list controllers can be used to override tabs. For example, if you create a page named overrideAccountTab that is associated with the Account standard list controller: Then, you can override the Account tab to display that page instead of the standard Account home page.

1. From the object management settings for accounts, go to Buttons, Links, and Actions.
2. Click Edit for the Accounts Tab.
3. From the Visualforce Page drop-down list, select the overrideAccountTab page.
4. Click Save.