完全删除ubuntu自带的firefox

(1)

sudo apt-get autoremove firefox firefox-branding firefox-gnome-support ubufox     //保留配置文件

sudo apt-get purge firefox firefox-branding firefox-gnome-support ubufox //配置文件也一起删掉

(2)

sudo apt-get remove firefox
rm ~/.mozilla -r

(3)

dpkg --get-selections |grep firefox

显示：

unity-scope-firefoxbookmarks            install

继续

sudo apt-get purge unity-scope-firefoxbookmarks