hi, firefox quantum also comes with a light theme that you can switch to when go to the firefox menu ≡ > addons > themes panel ;-)

I don't know what Firefox Quantum is. I simply want to be returned to the state before the recent unwanted change.

How about looking at these 2 URL's first : https://www.howtogeek.com/333110/how-to-customize-firefox-quantum-and-remove-the-white-space-around-the-title-bar/ and The name is not descriptive enough : https://www.howtogeek.com/332449/whats-new-in-firefox-quantum/

More information will come out slowly. New extensions are being made and some older ones being updated that are tracked here : http://bit.ly/2j0Anlj

This the best way to uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Going back : unfortunately 56.0.2 is no longer safe to use for every day use, but 52.5.0 ESR is! It will continue to get security updates until May 2018, and you can download and install it from this page: https://www.mozilla.org/en-US/firefox/organizations/all/ Note : Legacy Extensions will be deleted or removed in any version update after May 2018.

You should make a backup of your Profile before going back and just because: https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

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

I Don't want anything changed. Please take me back to the configuration before the recent change.

go to the firefox menu ≡ > addons > themes panel & choose the light theme ;-)

No, don't send me on a hunt for the answer = I simply want to be returned to the state befor the unwanted change.

I have tried the various theme options and they do enable reading the menu text and they do bring back the close/min/max buttons - they really have gone as opposed to simply being unreadable. There's no right click option as an alternative like there has been before.

So the theme works. Until I switch tabs and it's all black again. It's not being saved.