hello goatmandol, right-click the bookmarks, go to properties and make sure they are not set to open in the sidebar.

please also update firefox to the latest version as soon as possible - you are using an outdated version affected by numerous known security vulnerabilities which are actively exploited on the web!

Note that opening in the sidebar is the default for bookmarks that you create by clicking a button on a web page to bookmark this page.

None of the "solutions" described in this help list works. There is no "properties" option when I right-click Bookmarks. The smaller side screen has nothing to do with Bookmarks. I start with a full screen, launch another URL and lo I have a half-screen for ever. I can get rid of the half-screen by killing it, but what I want is to get rid of the main screen (Google News) and NOTHING will do that -- and I have the most recent Firefox!

HELP!

PS I just discovered that the problem only appears with one URL and it is not set to open in a sidebar, so the problem remains although its simpler than I thought.

Can you attach a screenshot?

• http://en.wikipedia.org/wiki/Screenshot
• https://support.mozilla.org/kb/how-do-i-create-screenshot-my-problem

Use a compressed image type like PNG or JPG to save the screenshot.