I came across a problem today when trying to watch a live webinar. It was asking for the Microsoft silverlight software. So after a bit of digging around i managed to find a solution which needs shared with anyone else who is having the same issues.
First step is to install the Pipelight. It is a wrapper for using Windows plugins in Linux browsers you can visit the project page here.
sudo add-apt-repository ppa:pipelight/stable
sudo apt-get update
sudo apt-get install --install-recommends pipelight-multi
sudo pipelight-plugin --update
Then to enable silverlight you would issue the following command
sudo pipelight-plugin --enable silverlight
And to disable the plugin issue the following command
sudo pipelight-plugin –disable silverlight
Pipe light has many other plugins available if you type
pipelight-plugin --help it will give you a list of what plugins are available. One small note to remember is that some websites will check your browser to see if it is compatible, you can use a user agent switcher plugin to make sites think you are running explorer. A user agent switcher for Firefox can be found here and chrome here.