Have you ever had a friend over who wanted to use your computer to look something up on the Internet? Or did you use your laptop for a presentation at work or school and had to use the Firefox browser as part of it? These situations can become embarrassing if the browsing history reveals more about you than you are normally willing to share. I'm not talking about the obvious here, NSFW sites that you have visited, but regular sites as well. Maybe you have visited a support group website, a political site or a religious site; the sheer fact that you visited such a site may reveal personal information about you that you may not want to share.
While you can take care of that by clearing the browsing history whenever you exit Firefox, or on demand, doing so will block your access to the information as well. Plus, deleting the browsing history does not hide bookmarks for instance which are displayed when you type in the browser's address bar.
Presentation Mode for Firefox has been designed for situations where someone else uses the browser or watches you while you are using the program, or when you want to take a screenshot of the browser interface but do not want to reveal your bookmarks or other personal information.
It does the following when activated:
You can activate the feature with a click on the toolbar icon that you find in the browser's addon bar after installation. If the add-on bar is not displayed, press Alt to display the menu bar and select View > Toolbars > Add-on Bar from the menu.
All existing Firefox tabs and windows get closed when you click on the button and a blank new page opens. While it does a good job at hiding some information, it does not hide them all. The downloads history is for instance still available under Tools > Downloads, as is a bookmarks button in one of the toolbars. This should not be a big issue on the other hand if you are the one controlling the browser.
If you do presentations regularly using Firefox, or often use the browser together with other users, you may want to give the add-on a try as it may help you avoid awkward situations when doing so (if you remember to press the button that is). (via)
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Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.