Took me a while to get converted over but its just so much faster than FF.
A few basic must haves that your probably already familiar with but to me they are must haves.
Evernote (fast easy way to save notes or receipts or webpages)
Last Pass (passwords)
Xmarks (bookmarks)
Mozbar
SeoQuake
Google Reader Notifier
Undo Closed Tabs
Mail Checker Plus For Gmail
PageRank status
LastPass
Currency Converter
Google Global
Clip to Evernote
Search the current site
LastPass
Firebug Lite
imgur
stumbleupon
4chan Y (essential lulz enhancement)
Extension Button
Image Search by Cooliris
Personalized Web (edit CSS on pages)
Webpage Screenshot
Firebug Lite (though to be honest the dev tools built into Chrome are just as good)
ChromeIPass (KeePass extension for Chrome)
Eye Dropper
Image Properties Context Menu
New Tab (set the page that a new tab opens at)
Resolution Test
Search By Image (Google)
Tin Eye Image Search
SEO Site Tools
Session Manager
Web Developer
What Font
YSlow
This is a really cool app, but is there anyway to open an image in something like Photoshop from within the app? Can't double click, right click, or drag and drop from what I can tell.
Lolwut? Last time I downloaded it, it was nearly 10 times the size of FF. (Not that I use FF, but it's fucking massive - although I suppose like a Jag XF, it feels small and nimble. )
My extentions are:
StayFocused -
Smooth Gestures
Chrome Toolbox
seoquake
Official Facebook Extention
Google Chrome Bachup Extensions
Aniweather
For palying games I use Game Button.