I switched to Firefox !

Yes, i switched to Firefox! I needed many add-on to get the same level of functionnality as Avant Browser. This last is great, but lack of update and has bug on Vista.
Here is the list of Module I use:
-ColorfulTabs
-DOM inspector
-FasterFox
-Firebug
-HTML Validator
-IE View
-MinimizeToTray
-PDF Download
-Session Manager
-SwitchProxy Tool
-Tab Mix plus
-TalkBack
-User Agent Switcher
-VideoDownloader
-Web Developer
-AS Numbers (BGP)
-ADblock Plus

For people using avant browser, here is how to get the same extra functionnality on FireFox:

-URL Alias: Create a Firefox Favorite, and then edit to add keywords. Then you can just type the keyword to convert to the full url.

-Search engine: I went to http://www.searchplugins.net/ to create my custom search:
-mskb: give it a KB number, you directly got the KB page (not a search result)
-eventID: give it an event ID, you get the result page from eventid.net