start.me - A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.
Mozilla Add-ons - Download Firefox extensions and themes. They’re like apps for your browser. They can block annoying ads, protect passwords, change browser appearance, and more.
Protopage - The best iGoogle alternative. Chris Pirillo calls Protopage "The best designed".
Extensions switcher - Menu for quick extensions control
Netvibes - First personalized dashboard publishing platform for the Web. Digital life managment, Widget distribution services and brand observation rooms.
SimpleExtManager - A simple menu to enable, disable and access options of extensions.