Which browser are you using? Each browser has different instructions which depend on which OS or iOS you are using.
Are you using a Mac or a Microsoft computer?
Mobile device (iOS)
All browsers have a "hide toolbar" button/option.
On a Mac using Firefox...
FF>View>Toolbar>Customize....

Which ever browser you are using, you can go to their forums and/or FAQ/tech help websites for detailed instructions on how to hide & restore the toolbar.
There are also browser video tutorials on YouTube.
"Never argue with a fool. Onlookers may not be able to tell the difference."
