分享 Firefox 截图的时候总是要给书签栏打码，毕竟有些文件夹或者书签的名字让人看到了很尴尬，就造了这个样式。默认给黑名单外的图标模糊文字，鼠标经过才显示。

先看看效果

鼠标经过才显示书签文字.gif鼠标经过才显示书签文字.gif

请按照需求进行修改，修改图标的话建议采用 Base64 编码的图片链接。

[x-link url="https://tool.chinaz.com/tools/imgtobase" title="图片 Base64 编码工具"/]

@-moz-document url("chrome://browser/content/browser.xhtml") {
    /** Firefox 117 + 才默认启用 CSS 嵌套 */
    .bookmark-item {
        /** 黑名单 :not() 里边填写不需要模糊的书签名字，跟着格式改 */
        &:not([label="软件"], [label="其他"]) {
            &>.toolbarbutton-text {
                transition: filter 0s;
                filter: blur(5px);
            }

            &:is(:hover, :focus, :active, :focus-within)>.toolbarbutton-text {
                transition: filter .2s;
                filter: unset;
            }
        }

        /** 修改图标助记 */
        &[label="影音"] {
            list-style-image: url('data:image/svg+xml;base64,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') !important;
        }
    }
}