Mozilla已經將Firefox 54.0 Beta 7的安裝文件放到了FTP，相比之前幾個Beta版本，54版的改進明顯變小，主要帶來了下載面板中的信息顯示部分的完善以及在書簽列表中區分出移動設備添加的書簽的特性，在性能上面似乎并沒有發現有什么變化。

New

Clearer and more detailed information for download items in the download panel

Bookmarks created on mobile devices are now shown in "Mobile Bookmarks” folder in the drop down list from the toolbar and Bookmarks option in the menu bar in Desktop Firefox

Developer

Changes for web developers

Create your own custom devices in Responsive Device Mode

下載地址:

https://ftp.mozilla.org/pub/firefox/releases/54.0b7/