It will install:
- Java Support
- Flash Player Plugin
- Gstreamer Codecs
- Non-free extra codecs
NOTE: Before continuing, please make sure that all default repositories (exspecially partners' ones) and updates are enabled.
1) Download the script - here
2) Right-click the script you will use, go to proprieties and to the Permissions tab. Select Allow executing as program.Close the window.
3) Now left-click on the script and run it in terminal.