The Google and Mozilla are testing versions of the Chrome and Firefox browsers to hide URLs, a feature more useful for netbooks and tablets.

PC World in a report said the modifications are being done to provide more screen space to display the full content of the websites they visit. The features are still in experimental stage.

In the latest design of Chrome Canary, the user can enable Compact Navigation to hide the toolbar and the URL will disappear. If the user again opens a tab, the URL bar will appear just below the screen.

To do the same in Chrome Canary 13, the user just needs to enter the command “about:flags in the URL bar, then select Compact Navigation and restart the browser, said the report.

In Mozilla, a similar feature provides a new add-on called LessChrome HD for Firefox 4 that will help hide the toolbar below the opened tabs whenever they are idle. The toolbar will resurface when the user moves the cursor over a tab, or when the tabs are switched.

Though hiding the URL allows netbook and tablet users to have more space, the process can be dangerous as it cannot display the address bar and exposes them to phishing attacks.

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