list of free extensions?
 obviously non-free:  iMacros for Chrome
 interesting as of 2010-07-18
  mouse Stroke 
  *Split Screen*
  chromeTouch
   sent mail to author on 2010-07-18

how to disable history
 workarond: for i in .config/chromium/Default/*History*; do rm "$i"; touch "$i"; chmod a-w "$i"; done
figure out why sqlite crashes
 http://code.google.com/p/chromium/issues/detail?id=48825
make options dialog fit to small screen

disable cache