fix youtube thumbnail
update version
increment SDK versin
README: set SDK version number to correct versin
added "permissions" : {"private-browsing": true} to allowed XPI to see tabs when in private browsing mode
rename localStorage
fix module name
fix icon url
fix property access style
fix misc code style
separate cookieutil lib
ver 0.9.13
use textContent
remove obsolete function
remove innerHTML
ver 0.9.14