Bitte testen:
CSS
#save-page-button> .toolbarbutton-icon {
list-style-image: url("data:image/png;base64,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")!important;
-moz-image-region: rect(0px 0px 0px 0px) !important;
margin-right: 3px !important;}
#fullscreen-button> .toolbarbutton-icon {
list-style-image: url("data:image/png;base64,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")!important;
-moz-image-region: rect(0px 0px 0px 0px) !important;
margin-right: 3px !important;}
#developer-button> .toolbarbutton-icon {
list-style-image: url("data:image/png;base64,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")!important;
-moz-image-region: rect(0px 0px 0px 0px) !important;
margin-right: 3px !important;}
#tabview-button> .toolbarbutton-icon {
list-style-image: url("data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgCAYAAABzenr0AAAAZUlEQVRYhWP48OHD/4HEDB8+fPg/f/31/wEFB+B4/vrr/+khDncAsiQM00Mc7oABjwJsLiQWU6J/1AGjDhg+DhjNhqMOGHUAxQ4YErUhKT4lxcxRB4w6YNQBow4YdcCoAwa8NgQAYsRHSGhjmYgAAAAASUVORK5CYII=")!important;
-moz-image-region: rect(0px 0px 0px 0px) !important;
margin-right: 3px !important;}
Alles anzeigen
Mfg.
Endor