Editors' Note: The Download Now link will redirect to the extension page. To install the extension directly, click on the install button on the page.
PanicButton makes it easier for you to hide all of your tabs at once just by clicking on a button. They are then saved as bookmarks in a separate folder. After that the PanicButton turns green and shows you how many tabs are currently hidden. Another click on the PanicButton restores all of the tabs you have hidden earlier.