www.youtube.com
www.computernetworkingnotes.com
web.yandex.org.kz
ubuntux.info
www.howtoinstall.co
The firefox on my ubuntu requires me to update Flash plugin and follow the link I get to the page which ask me to download the latest Firefox package. I download the tar.gz and unzip it.
askubuntu.comsupport.mozilla.org
itsfoss.com