ilovetokai

ScrapBook is a Firefox extension, which helps you to save Web pages and easily manage collections. Key features are lightness, speed, accuracy and multi-language support. Major features are:

• Save Web page
• Save snippet of Web page
• Save Web site (In-depth Capture)
• Organize the collection in the same way as Bookmarks tree
• Highlighter, Eraser and various page editing tools
• Full text search and quick filtering search
• Text edit feature resembling Opera's Notes

http://amb.vis.ne.jp/mozilla/scrapbook/index.php?lang=en