Metrics.event-count

Background

Firefox 2.0 will include code to optionally record “browser metrics,” or usage statistics, and send the information back to Mozilla for analysis. The goal is that this information will aid developers in choosing features, designing UI behavior, identifying web sites that can cause problems, and other important points of the user experience.

This preference keeps track of how many trackable events have occurred since the last data upload. After a predefined limit is reached, the metrics data is sent and this value resets to 0.

Possible values and their effects

This integer preference should be 0 or a postive value, indicating how many events the metrics extension has logged.

First checked in

2006-03-16 by Darin Fisher

Has an effect in

• Mozilla Firefox (1.8 branch builds since 2006-03-16 built with metrics extension; 2.0)

Related bugs

• Bug 324558 - Build data collection service to gather browser metrics
• Bug 328125 - Add support for client-side throttling

Related preferences

• metrics.client-id
• metrics.last-session-id
• metrics.upload.cert-host-override
• metrics.upload.enable
• metrics.upload.next-time
• metrics.upload.uri

External links

• Data collection service added to Firefox (Henrik Gemal's blog)
• Browser Metrics - MozillaWiki