monline

In Firefox 4 statusbar was replaced with add-on bar which is just another toolbar like eg. the navigation toolbar (which we used to call "the toolbar"). However Adblock Plus still contains support for the old statusbar which might confuse users a bit. Eg. in the ABP preferences documentation both the defaultstatusbaraction and the defaulttoolbaraction preferences are still there.

However since in Firefox 4 (and later) there's no statusbar, you can use the one toolbar icon (since ABP provides only one). You can place this icon either in the navigation toolbar or the add-on bar (or any other toolbar) and control it's click behaviour with the extensions.adblockplus.defaulttoolbaraction preference. I've discussed this extensively in the ABP forum.