- You can easily check to see what version number of TubeSpanner you are using by opening your Manage Extensions menu from the top-right corner of your Browsers menu bar: 
- Next you will need to open the options menu for your TubeSpanner extension and select Manage Extension from the following list of options (shown above). 
- The version number of your TubeSpanner browser extension will be shown here: 
 
                 
