Sage is a Firefox extension. If you don't already have Firefox installed, you can download it for free.

Sage 1.4.2: click here to install (for Firefox 3.0 users)

Sage 1.3.10: click here to install (for Firefox 1.0 - 2.0 users)

After installation, there are four ways to access Sage in Firefox:

• Toolbar button, View -> Toolbars -> Customize, drag the Sage icon to the toolbar
• Menu selection, Tools -> Sage
• Menu selection, View -> Sidebar -> Sage
• Keyboard shortcut, Alt-Z

New in Sage 1.4

• Firefox 3 compatibility
  Sage now integrates with Places in Firefox 3
• Revamped feed rendering system
  Authors, enclosures, and vastly improved multi-tab reading
• Content handler
  Use Sage to preview your feeds
• Security improvements

New in Sage 1.3

• Live Bookmarks Integration
  Sage now interprets Live Bookmarks just as it does regular bookmarks, allowing the user to subscribe to feeds using the auto-discovery mechanism in Firefox. Live Bookmarks may be added to your Sage Feeds folder using Firefox's orange feed indicator icon, making them available for reading in the Sage sidebar. This gives users a quick and easy subscription method, while Sage's built-in 'Discover Feeds' function provides a more thorough scan.
• Feed Item Toolbar and Mark Read/Unread
  Sage now supports marking feed items as read or unread. To do this you can either use the feed item context menu or the Feed Item List Toolbar. The following keyboard shortcuts are available (As usual you can hold down shift or ctrl when clicking the feed item to open it a new window or tab):
  
  

  M	Toggles the read state of the selected feed item
  Ctrl+Shift+C	Marks all feed items as read.
  Enter	Open selected feed item in current tab/window
  Shift+Enter	Open selected feed item in a new window
  Ctrl+Enter	Open selected feed item in a new tab

• Enhanced Locale Support
  Thanks to the efforts of our localization group, Sage now has full native support for Catalan, Chinese, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Russian, Spanish and Swedish locales.
• Many bug fixes and miscellaneous enhancements.