图标消失 Rated 4 out of 5 stars

为什么安装好插件后,第二天开电脑打开FF,导航栏上的图标不见了?要去附加组件里禁用再启用,图标才会出现,Diigo出品的三个插件都是如此。Awesome Screenshot、Quick Note和Read Later Fast,不知是我个人原因吗?还是Bug?图标消失了使用非常麻烦,每次都要禁用再启用才能用

This review is for a previous version of the add-on (2.0). 

你是不是安装了tab mix plus 这个插件? If you have installed the Tab mix plus Plugin, you just need to close the "Session" function in Tab Mix Plus (Choose "Don't Restore" in session tab of tab-mix-plus option. )