What Firefox Extensions do you use?

[ZiNgA BuRgA]

Practically every tech related forum has such a thread, so we must have one too.

Anyway, me:

• Adblock Plus - for obvious reasons
• BlockSite (disabled) - used to block Google Analytics, now I just null route the domain (hosts file)
• Firebug - handy thing most web developers have
• Firecookie - I wanted some tool to manipulate cookies - this advertises that it does it, but doesn't seem to work that well :/
• FoxyProxy - quickly change proxies
• ImgLikeOpera - improves Firefox with images disabled
• RefControl - bypassing hotlink protection on some sites
• RefreshBlocker - cause I find META refreshes annoying
• Resizeable Textarea - cause I'm not using Firefox 4.0 yet
• Session Manager - for when Firefox crashes, or just that I like having 30 tabs open, so reloading Firefox doesn't reload all tabs
• Tab Mix Plus - very handy, multiple tab rows, plus highlight unviewed tabs
• User Agent Switcher - masquerade as Googlebot to bypass sites which only allow Google to see content