In this video we are going to downgrade Firefox version 58 to version 52 ESR on Mac OSX El Capitan version 10.11. If for any reason you want to downgrade Firefox then this video is for you. Firefox ESR is intended for groups who deploy and maintain the desktop environment in large organizations such as universities and other schools, county or city governments and businesses.

Mozilla plans to release Firefox 60 and on Wednesday. While Firefox 60 is just another update for users of the stable channel, the same cannot be said for ESR (Extended Support Release) installations. Firefox 60 ESR is a major upgrade that is available as an upgrade from Firefox 52 ESR. Free backup for mac. If you follow Firefox development, you know that major changes happened in the past couple releases and especially with the. Firefox features a new design, performance improvements, and dropped support for legacy add-ons to name just a few of the changes.

Firefox 60 ESR Timeline Mozilla plans to. Existing Firefox ESR installations don't need to be updated to the new major version directly as Firefox 52.8 and Firefox 52.9 will be released alongside Firefox 60 ESR and Firefox 60.1 ESR. The release of Firefox 62 and Firefox 60.2 on September 5, 2018 marks the end of the 52.x version of Firefox ESR. Differences between Firefox 60 and Firefox 60 ESR Firefox 60 and Firefox 60 ESR offer identical functionality for the most part.

Firefox 60 ESR supports only WebExtensions, and it supports most features that are supported by Firefox 60. There are notable differences, however. • Service Workers are not supported by default.

The main reason is that work continues on the implementation of Service Workers in Firefox. You can enable Service Workers in Firefox 60 ESR by loading about:config?filter=dom.serviceWorkers.enabled and setting the preference to true on the page that opens. • Push Notifications disabled. Push Notifications require Service Workers and since Service Workers is not enabled by default, Push Notifications is neither.

To enable Push Notifications in Firefox 60 ESR: load about:config?filter=dom.push.enabled and set the value of the preference to true. • Enterprise Policies for Firefox 60 ESR. Enterprise admins used CCK2 Wizard in previous versions of Firefox to configure Firefox installations in networks. CCK2 Wizard is not compatible with Firefox 57. While many policies work in all versions of Firefox, some policies are limited to Firefox ESR. • Option to disable add-on signature enforcement.

Mozilla made add-on signatures mandatory with the release of Firefox 43. While you can't disable signature requirements in Firefox Stable or Beta, it is possible to disable the feature in Firefox Dev, Nightly and also in Firefox 60 ESR. To do so, load about:config?filter=xpinstall.signatures.required and set the preference to false. Firefox 52 ESR and Firefox 60 ESR differences Firefox 60 ESR differs from Firefox 52 ESR in significant ways as well. • Windows XP and Windows Vista are not supported.