No........ and no. Have you seen this : https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars It looks like what ever you want to look like. As well have it look like 56 Here's a more comprehensive project which affects not only tabs but brings back the old "grid-style" options menu. https://github.com/axydavid/FirefoxUI/blob/master/README.md

It isn't completely possible to use the Australis design with Firefox 57, but depending on what you want, you might be able to customize the UI to look more like the old one: This project: https://github.com/wilfredwee/photon-australis lets you have the old tab bar appearance back in Firefox 57. You can remove the space around the address bar by right-clicking on the spaces, and choosing "remove from toolbar". Note the Black Theme is just a Example and can be found in Customize. Or this https://support.mozilla.org/en-US/kb/customize-new-tab-page And have you looked for alternatives to you Extensions : https://mozilla.github.io/extension-finder/ Have you checked these 2 to see if your Extensions are still being worked on for 57 : https://docs.google.com/spreadsheets/d/1TFcEXMcKrwoIAECIVyBU0GPoSmRqZ7A0VBvqeKYVSww/edit#gid=0 and http://arewewebextensionsyet.com/#addons

Please let us know if this solved your issue or if need further assistance.

Pkshadow said

No........ and no. Have you seen this : https://support.mozilla.org/en-US/kb/customize-firefox-controls-buttons-and-toolbars It looks like what ever you want to look like. As well have it look like 56 Here's a more comprehensive project which affects not only tabs but brings back the old "grid-style" options menu. https://github.com/axydavid/FirefoxUI/blob/master/README.md It isn't completely possible to use the Australis design with Firefox 57, but depending on what you want, you might be able to customize the UI to look more like the old one: This project: https://github.com/wilfredwee/photon-australis lets you have the old tab bar appearance back in Firefox 57. You can remove the space around the address bar by right-clicking on the spaces, and choosing "remove from toolbar". Note the Black Theme is just a Example and can be found in Customize. Or this https://support.mozilla.org/en-US/kb/customize-new-tab-page And have you looked for alternatives to you Extensions : https://mozilla.github.io/extension-finder/ Have you checked these 2 to see if your Extensions are still being worked on for 57 : https://docs.google.com/spreadsheets/d/1TFcEXMcKrwoIAECIVyBU0GPoSmRqZ7A0VBvqeKYVSww/edit#gid=0 and http://arewewebextensionsyet.com/#addons Please let us know if this solved your issue or if need further assistance.

I think it is interesting that you avoided the poster's question and just started talking about how he should update.

If you look at the question at all it is clear that the real question is why the option to "never look for updates" doesn't work.

But maybe you avoided answering this on purpose.

First, Type about:preferences#advanced<enter> in the address bar. Under Advanced, Select Update.

[v56+] Type about:preferences#general<enter> in the address bar. Select Update.

Select Never Check For Updates.

Also turn off Use a background service to install updates

Install Older Version Of Firefox {web link} Be sure to read everything here.

If you still want to downgrade, look under; I still want to downgrade. Click the Directory of other versions and languages link. Look for the directory of the version that you want. But, remember that old versions may have security issues.

You should also check out Firefox; Extended Support Release {web link} ESR Notes System Requirements