Favorite Extensions for FF or TB?

Just wondering what everyone's favorite extensions are and why. I know this was done about a year ago, but there are new version now, so I though it would be helpful.

Stephanie

 

IETab
IEView
Webdeveloper
spellbound
mouse gestures
FireFTP
Resizable Text Area
paste and go

 

any one else?

 

here's what i have installed in FF 1.5 on WinXP:

Image Zoom
Adblock < (favorite extension)
PDF Download
Flashblock
ColorZilla
Sidebar on Right
NoScript
Yahoo! Mail Notifier
Web Developer
Menu Editor
MeasureIt
Sourceforge Direct Download
Clines (game)
Blockfall (another game)
Spellbound
Mozilla Spellcheck Libraries
MenuX < (i only use this for the cool garbage can icon
Tab Search History
Adblock Filterset.G Updater < (second favorite extension)
Search Engine Ordering < (this one should have been the default behavior in my opinion)

theme installed:
SafariFox (SaFire)

 

I've got:
Bookmark Backup - In Fx 1.5, can back up entire profile
Make Link - Generates code for text links
QuickNote - Note-taking extension
BB Code - Adds formatting (BBCode/HTML/XHTML/etc) to context menu for blogs and forums
IE View - Opens pages in IE via Firefox menus
ScrapBook - Helps save web pages and easily manage collections
WebmailCompose - Makes mailto: links open your webmail's compose page
Nightly Tester Tools - What it says, formerly known as Build ID Copier
AllowClipboard Helper - Manage servers where clipboard functions are allowed in WYSIWYG widgets
FlashGot - enables single and massive downloads using the most popular external download managers