Tab Extensions for Firefox

Here's a list of extension I'm trying out in order to solve my tab problem. The Aging Tabs extension sounds the most promising.

• Firefox Showcase
  - Just like IE
• Colorful Tabs - Make 'em colorful
  
• Split Pannel - Split a webpage in two - useful if you want to compare two site.
  
• Aging Tabs - Tabs fade as they are ignored
• PermaTab - Make some tabs permanent
  
• Morning Coffee - keeps track of your daily routine, and opens sets of tabs based on days. IE, Mon-Fri; work pages; Sat - Sun: slashdot
• Check4Change - refresh a page periodically