Firefox无法正常更新的解决办法

发现安装了nightly版本的firefox之后每天弹出来一个对话框,说
The update could not be installed. Please make sure there are no other copies of Firefox running on your computer, and then restart Firefox to try again.
两天之后,我终于受不了了(人比较懒没办法o(︶︿︶)o),遂放狗搜索解决办法,在ff的官方网站上找到了相关说明。
具体可以看
http://kb.mozillazine.org/Software_Update
在firefox.exe的属性中设置run as administrator就可以正常升级了。