Mozilla Firefox 53 今天正式发布，据之前Mozilla公布的消息显示，从这一版本开始，将默认启用多进程架构，如果浏览器安装了不支持多进程的扩展，那么浏览器将仍然使用单一进程；更重要的是，从53版开始，Firefox停止对Windows XP与Vista的支持，这意味着如果想使用更高版本的Firefox就要升级到Windows 7及以上的版本，

下载:

https://ftp.mozilla.org/pub/firefox/releases/53.0/

New

• Improved graphics stability for Windows users with the addition of compositor process separation (Quantum Compositor)

• Two new 'compact' themes available in Firefox, dark and light, based on the Firefox Developer Edition theme

• Lightweight themes are now applied in private browsing windows

• Reader Mode now displays estimated reading time for the page

• Windows 7+ users on 64-bit OS can select 32-bit or 64-bit versions in the stub installer

Changed

• Permission notifications have a cleaner design and cannot be easily missed

• Windows XP and Vista are no longer supported. XP and Vista users running Firefox 52 will continue to receive security updates on Firefox ESR 52.

• 32-bit Mac OS X is no longer supported. Firefox is now a 64-bit only Mac OS X application

• Updates for Mac OS X are smaller in size compared to updates for Firefox 52

• Media playback on new tabs is blocked until the tab is visible

• The last few characters of shortened tab titles fade out instead of being replaced by ellipses to keep more of the title visible

• New visual design for audio and video controls

• Ended Firefox Linux support for processors older than Pentium 4 and AMD Opteron

• Media playback on new tabs is blocked until the tab is visible

Developer

• Changes for web developers

• Support for WebM video with alpha, which allows playing videos with transparent backgrounds