

IMPORTANT NOTE ABOUT UPDATING TO v71: A new Firefox profile will be created when you update from earlier versions to version 71.0. OS X 10.8 Mountain Lionįinal version for OS X 10.8 Mountain Lion: 71.0p2 () You will not need to run the command again unless you log out. Open -a /Applications/Chromium.app -args "-oauth2-client-id= -oauth2-client-secret=OTJgUOQcT7lO7GsGZq2G4IlT"Ĭhromium Legacy will open log into your Google account. To enable Google sync in Chromium Legacy, quit the browser, then enter the following command in Terminal (it is one long line): There will be no further updates to Firefox Legacy.įor an up-to-date browser for older Macs, try Chromium Legacy. It has become increasingly challenging to update it to a more modern Firefox version, and I no longer use it myself. * macOS Sierra 10.12.3 Flickering video? Firefox Legacy is an unofficial modified version of Mozilla Firefox that works on older Mac OS X versions, including 10.6 Snow Leopard, 10.7 Lion, and 10.8 Mountain Lion.ĭownload it now and breathe new life into your old Mac.Īs of, Firefox Legacy is no longer supported. Your example asking about Fx25.0.1 for en-US language just download this single fileĪlthough as I said earlier it is not really a good idea to use old unsupported unsafe versions of Firefox. macOS Sierra 10.12.3 Flickering video? /questions/1164038.

I note you also have another question open, but as I am not a Mac user I think it better that someone else tries to answer that: (Mainly intended for corporate use but that does not prevent you from trying it of you wish) If you do want to try an older version I would not try Firefox 25 I would suggest you try Fx52esr at least that is updated with critical security fixes. Profile Manager - Create, remove or switch Firefox profiles.If you do run an additional version of Firefox make sure you create a new profile for that version

If your machine has the resources you may even run Firefox versions simultaneously side by side for comparison, however that is not a good idea if you are running in to issues with performance or lack of memory. You should note that more than one version of Firefox may be installed at the same time.
