Contributing is easy and takes only a couple of minutes. Just follow these steps:
- Open the Web History Repository page at Mozilla.org (click on the link to download)
- Click on Add to Firefox
Confirm that you want to install the add-on by clicking on 'Add Now'
- Restart Firefox
- Upon restarting a popup window will appear (if not, open it via the menu Tools - Web History Repository - Send Now ...)
- You can choose to contribute immediately (click 'Send now') or to be reminded the next time that you start Firefox
The add-on does not track data - your anonymized data will only be sent once you click on the 'Send now' button yourself.
After having contributed the data, you can simply deinstall the add-on (or keep it installed and submit again after about three months).