When you customize the navigation and status bars, either make them both transparent or modify only the status bar.
The navigation bar should remain black in all other cases.
Delete the file "Ask Search.js" (if found) after uninstalling.
Updating google toolbar
Direct links to images or PDF files may cause the error, The image cannot be displayed because it contains errors. Firefox may stop responding or hang at exit, resulting in an "already running but is not responding" error (or problems with bookmarks, history, and toolbar buttons due to a locked Places database) when you next restart Firefox.
Extensions" (the extension is not needed to use the Skype application).
The "Block all embedded objects" preference is set to "Yes" by default, causing embedded media normally handled by plugins to disappear, including Flash content. May cause redirected searches, failed keyword searches and/or the "File not found" error, Firefox can't find the file at jar:file:///C:/Program Files/Mozilla Firefox/chrome/en-US.jar!
/locale/browser-region/region.properties May cause "New Tab" button and "Ctrl T" to fail. May need to uninstall via Windows Control Panel (see Uninstalling toolbars).
Important: Down Them All 1.0 changes certain "network.http" preferences that will need to be reset, even if you disable or uninstall the extension.