Firefox: Open any bookmark in sidebar
In
Firefox, you can make any bookmark open up in the sidebar. To do this, open the properties for a bookmark and check "Load this bookmark in the sidebar." Now the page will load in the sidebar, and any link you click in the page will open up in the main browsing area. This would be good for a page where you have a lot of links such as a collection of bookmarks (e.g.
del.icio.us). You can even use it to
place the JavaScript Console in the sidebar.