Extensions and themes are like apps for your browser, and they let you protect passwords, download videos, find deals, block annoying ads, change how your browser looks, and much more. These small software programs are often developed by a third party. Here’s a selection { -brand-product-name } <a data-l10n-name="learn-more-trigger">recommends</a> for exceptional security, performance, and functionality.
扩展和主题就像手机上的应用，可帮助您保管密码、下载视频、查找优惠信息、拦截恼人广告、改变浏览器外观等等。这些小型程序大多由第三方开发。以下是一些 { -brand-product-name } <a data-l10n-name="learn-more-trigger">推荐</a>的附加组件，它们在安全性、性能和功能等方面表现优秀。