Clean up in utilityOverlay.js
- in goToggleToolbar: use of properties instead of attributes
- in getBrowserURL: don't use 'browser.chrome' pref.
Some dependency work in bookmarksManager.xul. More to be done.
git-svn-id: svn://10.0.0.236/trunk@141954 18797224-902f-48f8-a5cc-f745e15eee43