

Let’s talk about Firefox version 60, when RR was version 60 and ESR was version 60. Update Channels version and updates Example Extended Support Release receives feature updates every 42 weeks and every 6 weeks receives only security updates and fixes. Rapid Release updates every 6 weeks including features, security updates and fixes.

You can find more information on Mozilla Firefox Update channels page. Rapid Release (the regular version) and the Extended Support Release (ESR). There are two versions of Firefox available (Mozilla Firefox RR and Mozilla Firefox ESR), with their update channels. What are Mozilla Firefox update channels? Mozilla Firefox with Group Policy Management Mozilla Firefox Silent installation and deployment
