I'm guessing you've tried Selenium IDE already. If not, then I recommend using it probably on an older version of Firefox. After v55, Selenium IDE is not supported on Firefox. BTW, Selenium IDE does not work with any other browser either.
So, probably a long term solution could be to use some other tool. katalon studio recorder could be a viable option.
You can probably follow this thread for updates on alternatives: https://www.edureka.co/community/960/unable-to-use-selenium-ide-%26-firebug-on-firefo