Google Bookmarks allows you to create bookmarks you can access anywhere. You can bookmark your favorite Web sites and add labels and notes to them. Your labels and notes are searchable later, and you can access your bookmarks from any computer by signing in. You know what can make it even better? A Firefox Google Bookmarks menu.
Here is what the developer has to say about the extension.
Creates a menu to access google bookmarks from any computer. Needs Google Account to use this extension.
1. Added the ability to import or add Firefox Bookmarks to Google Bookmarks
2. Added the ability to Sort by Date and title
3. Added Context Menu buttons
Check out the screenshots to see it in action. Now you can save time with quick links to your favorite Web sites and add that functionality right into the Firefox browser interface.
This Firefox extension is for versions 1.5 and up of the browser. If you want to download it and try it out for yourself, you can do so at the Mozilla Update Web site.