As if the ‘Go’ Button weren’t bad enough, Firefox 3 adds a Bookmark ‘Star’ Button to the address bar.
This ‘feature’ allows you to bookmark the current page you are browsing. This can also be accomplished by pressing CTRL+D (Add Bookmark), selecting Bookmark This Page from either the Bookmarks or Context (right-click) menu. To remove the Bookmark ‘Star’ Button use ChromEdit and add the following lines to your userChrome.css file:
/* Remove the Bookmark star */
display: none !important; }
Once you have added these lines, click Save, then Restart; the ‘Star’ will be gone when Firefox restarts.
Tip Source: Eric Wendelin’s Blog