The issue focused minds yesterday after Mozilla disclosed details of how Firefox collects browsing history data about visitors from Firefox Sync and SyncAnalytics extensions for Safari and IE 11. Mozilla acknowledged that SyncAnalytics gathers browsing history data only when browsing sites hosted outside of Mozilla’s firewall – ie websites accessed via proxies – rather than browsing websites accessed via Mozilla Sync’s HTTPS endpoint. SyncAnalytics gathers browsing history data based on browsing histories logged via SyncBrowser extensions installed by SyncBrowser extensions installed by SyncBrowser extensions installed by