Replace Firefox Default Favicon

The new default favicon for sites that don’t have a favicon is nothing more than a dotted square. In the past it resembled a piece of paper. Here are a couple options to replace the current favicon.  Add these lines to your userChrome.css in the chrome folder within your profile folder [directions]

Firefox Logo () – rob64rock has a stylish script that will do this as well.

/* Fx branding tab Favicon on New/Blank tabs */

tab .tab-icon-image:not([src]) {
list-style-image: url(“chrome://branding/content/icon16.png”) !important;
}

#urlbar #page-proxy-favicon:not([src]) {
list-style-image: url(“chrome://branding/content/icon16.png”) !important;
}

menuitem[class=”menuitem-iconic bookmark-item menuitem-with-favicon”]:not([src]) {
list-style-image: url(“chrome://branding/content/icon16.png”) !important;
}

Other Logo ()

/*Replaces the ‘new’ default Favicon */

tab .tab-icon-image:not([src]) {
list-style-image: url(“chrome://global/skin/icons/folder-item.png”) !important;
}

#urlbar #page-proxy-favicon:not([src]) {
list-style-image: url(“chrome://global/skin/icons/folder-item.png”) !important;
}

menuitem[class=”menuitem-iconic bookmark-item menuitem-with-favicon”]:not([src]) {
list-style-image: url(“chrome://global/skin/icons/folder-item.png”) !important;
}

b .tab-icon-image:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}

#urlbar #page-proxy-favicon:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}

menuitem[class="menuitem-iconic bookmark-item menuitem-with-favicon"]:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}
/* Fx branding tab Favicon on New/Blank tabs */

tab .tab-icon-image:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}

#urlbar #page-proxy-favicon:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}

menuitem[class="menuitem-iconic bookmark-item menuitem-with-favicon"]:not([src]) {
   list-style-image: url("chrome://branding/content/icon16.png") !important;
}