Waterfox 水狐浏览器紧跟Firefox的更新步伐，最新版的Waterfox 15.0 已经可以下载了。64位系统下的64位应用毫无疑问会带来更好的性能，Mozilla的Firefox虽然版本更新极快，但64位版本却始终步履蹒跚，而且它非常早期和不稳定，对于64位系统的朋友们来说用什么来提升浏览器性能呢，答案是Waterfox。下载:Waterfox 18.0.1

Changes in Firefox 18.0.1:
* First revision of the Social API and support for Facebook Messenger
* Click-to-play blocklisting implemented to prevent vulnerable plugin versions from running without the user’s permission (see blog post)
* Updated Awesome Bar experience with larger icons
* JavaScript Maps and Sets are now iterable
* SVG FillPaint and StrokePaint implemented
* Improvements that make the Web Console, Debugger and Developer Toolbar faster and easier to use
* New Markup panel in the Page Inspector allows easy editing of the DOM
* Sandbox attribute for iframes implemented, enabling increased security
* Over twenty performance improvements, including fixes around the New Tab page
* Pointer lock doesn’t work in web apps (769150)
* Page scrolling on sites with fixed headers (780345)
* Problems involving HTTP Proxy Transactions (Associated bugs)
* Disabled HIDPI support on external monitors to avoid rendering glitches (bug 814434)
* Faster JavaScript performance via IonMonkey compiler
* Preliminary support for WebRTC
* Experience better image quality with our new HTML scaling algorithm
* Performance improvements around tab switching
* Support for new DOM property window.devicePixelRatio
* Improvement in startup time through smart handling of signed extension certificates
* Support for W3C touch events implemented, taking the place of MozTouch events
* Disable insecure content loading on HTTPS pages (62178)
* Improved responsiveness for users on proxies (769764)