How to make a local copy of a Google Chrome extension, as a backup?

I've had my browser crash and drop all my extensions a couple times, or didn't like updated versions of extensions. Is there a way I can save a copy of my extensions as they are now so I can re-install my local copies later?|||There's an "Extensions" folder at C:\Documents and Settings\YourUserName\Local Settings\Application Data\Google\Chrome\User Data\Default(Windows XP)