


Among the other caveats that come with the new ESR proposal are that Firefox would only be supported on operating systems "supported at the beginning of an ESR." Presumably that means running Firefox ESR on OS upgrades that come along during that 42 week cycle would not be supported. Mozilla also notes that the ESR channel will be "less secure" than the rapidly updated Firefox, with only "high-risk/impact security patches" being backported to the slower release plan.
