I would do the exact opposite, as there are essentially no favicons of any use on what I have on my own toolbar. The only valid icon is with Google Voice and it is the generic Google favicon. Instead I get rid of all of the icons and use very short text names 1-4 chars. Blue for folders, Red for bookmarklets and that one plain bookmark. * before -- http://cdn.userstyles.org/style_screenshots/9091_before.png * after -- http://cdn.userstyles.org/style_screenshots/9091_after.png See one of previous replies here, plus how to do it your way. Come to think of it Favicon picker may have.cause problems. sorry some duplication and didn't see the posting I was looking for Before and after customizations, the following also includes [http://dmcritchie.mvps.org/firefox/firefox-problems.htm#fx4styles styling changes] besides rearranging toolbars and toolbar items. * http://dmcritchie.mvps.org/icons/fx4toolbars.png *:Bookmarks toolbar -- [http://userstyles.org/styles/46947 Bookmarks Toolbar Fx4 Blue/Folders, Red/Bookmarks] *:Tab borders -- [http://userstyles.org/styles/24728 Tab Color Underscoring active/read/unread (Fx3.6)] red=active tab, blue=read, green=unread, magenta(not shown)=loading See * After upgrading to Firefox 8.0, a substantial number of the icons on the bookmarks on my bookmarks toolbar are missing. Why? How cn I get them back. - 11-12-11 update - See Below Details | Firefox Support Forum | Firefox Help<br>https://support.mozilla.com/questions/894100 * The logos on some of my bookmarks are now blank squares witha dotted line around them | Firefox Support Forum | Firefox Help<br>https://support.mozilla.com/questions/894111

See: *Bookmark Favicon Changer: https://addons.mozilla.org/firefox/addon/bookmark-favicon-changer/