Firefox 66.0.5 and 60.6.3 ESR have been released with the fix for the disabled addons issue.
https://www.ghacks.net/2019/05/04/yo...d-thats-a-bug/

Firefox 66.0.5 downloads:
https://ftp.mozilla.org/pub/firefox/releases/66.0.5/

Firefox 60.6.3 ESR downloads:
https://ftp.mozilla.org/pub/firefox/releases/60.6.3esr/