Remember, even after doing this, the source of those suggestions may still stay in the browser though they will become invisible.
- Click the menu button and choose Options.
- Select the Privacy panel.
Below Location Bar, select any of the following:
- History: suggests sites that you've previously visited.
- Bookmarks: suggests sites that you've bookmarked.
- Open Tabs: suggests sites that you have open in another tab.
Close the about:preferences page. Any changes you've made will automatically be saved.