PageSucker was written in the highly portable language Java. This means that it can run on any platform you can find a Java interpreter for. You can think of a Java interpreter as a kind of helper program needed to launch PageSucker.
MacOS X users can keep the built-in Java interpreter up to date simply by using the Software Update control panel.
For Windows and selected UNIX platforms, get the Java Runtime Environment (JRE) from SUN.

The Feed Sidebar is an extension for Firefox that displays the items from your Live Bookmarks in the sidebar. It is intended to be a lightweight extension of the RSS capabilities already included in Firefox, not a completely new feed management system.

Installing the Feed Sidebar will add a new sidebar to Firefox that, when opened, will display the unread items from the feeds that you have bookmarked in Firefox. Clicking on an item will show...