Locate a bookmark in Bookmarks Manager's folders tree or in the Bookmarks Sidebar for firefox 10.0.2
Locate in Bookmark Folders 0.2.5 by Alex Muntean
Locates a bookmark in Bookmarks Manager's folders tree or in the Bookmarks Sidebar, complementing the Bookmark Search feature of...
Add to Firefox Not available for Firefox 10.0.2
Opaite Mbohovái (1)
Sorry, the developer of that Addon hasn't updated it to support the latest version of Firefox yet. It may still work though, so you can click the button and then click "Install Anyway" and see how it goes. Good luck!