Existing users should not be upgraded. The Mozilla website will use UA versions to redirect users on these versions to a SUMO page.
If a user does end up downloading and attempting to the DMG, the minimum version is set in the app bundle and MacOS will show a warning saying that this application requires a minimum MacOS version of 10.9. --BDS On Thu, May 26, 2016 at 5:33 PM, Chris Pearce <cpea...@mozilla.com> wrote: > What will the behaviour be for users on unsupported MacOSX versions? > > It sounds like existing users won't get updated to a non-supported version. > > What about users to try to install Firefox on an unsupported MacOS > version? Will the installer show some sort of notification/dialog box > saying that their OS is unsupported? Or will Firefox just fail to start or > crash mysteriously? > > > cpearce. > > > > On Friday, March 11, 2016 at 7:04:03 AM UTC+13, Benjamin Smedberg wrote: > > This is notice of an intent to deprecate support within Firefox for the > > following old versions of MacOS: 10.6, 10.7, and 10.8 > > > > The motivation for this change is that we have continued failures that > > are specific to these old operating systems and don't have the resources > > on engineering teams to prioritize these bugs. Especially with the > > deployment of e10s we're seeing intermittent and permanently failures on > > MacOS 10.6 that we are not seeing elsewhere. We get very little testing > > of old MacOS versions from our prerelease testers and cannot dedicate > > much paid staff testing support to these platforms. We also have an > > increasingly fragile set of old hardware that supports automated tests > > on 10.6 and do not intend to replace this. > > > > This will affect approximately 1.2% of our current release population. > > Here are the specific breakdowns by OS version: > > > > 10.6 > > 0.66% > > 10.7 > > 0.38% > > 10.8 > > 0.18% > > > > The final timeframe for this deprecation has not been finalized, but the > > current proposal is to remove support in Firefox 46. We will try and > > update existing users on old MacOS versions to the Firefox 45 ESR > > release stream, so that they stay with security update support through > > the end of 2016. > > > > Because of the ESR update window, I would like to finalize this decision > > by Monday. If you have questions or concerns about this plan, please > > reply to the firefox-dev mailing list immediately. Jeff Griffiths will > > be working with our communications team to coordinate more public > > communications such as post to the Future of Firefox blog. > > > > --BDS > > _______________________________________________ > dev-platform mailing list > dev-platform@lists.mozilla.org > https://lists.mozilla.org/listinfo/dev-platform > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
