Firefox 21 Beta has been released and available for testing with new features like three states of UI for Do Not Track, ability to restore all removed thumbnails from most controversial New Tab Page and Health Report has been preliminarily implemented which has been already available on Nightly and Aurora builds.

Viewing Firefox health Report

To open Firefox health report, click on Firefox button and then hover mouse oven Help Submenu and select “Firefox Health Report” or type “about:healthreport” (without quotes) in the address bar and press enter.

If you’ve visited Health Report on first day, bottom of page shows tip to come back after couple of weeks to see more trends.

FYI, Firefox Beta comes with Data Sharing/Health Report turned on by default for browser, which means Firefox sends Raw data to Mozilla servers. If you’ve any Privacy concerns, you can turn off data sharing or disable Firefox Health Report, then all data Mozilla received will be deleted from their servers after 180 days.

Disabling Firefox Health Report/stop data sharing with Mozilla

I.  From Firefox Health Report page, click on Data Sharing button which is on to turn it off.

Firefox Health Report with Data Sharing on off option

II. You can also turn off Data sharing by disabling Firefox health report, for that

1. Click on Firefox button>Options>Advanced

2. On Options window, click on “Data Choices” tab and uncheck “Enable Firefox Health Report”

disabling Firefox health report

3. Click OK to save the changes.