About:config specific setting via a button toggle/extension?

I'm wondering if there's any way to have a button toggle for a setting exposed via about:config? The reason for my ask is that I currently use a second Firefox profile, where full-screen-api.ignore-widgets is set to True, in order to have full-screen videos inside a firefox window, meaning I can fully expand a video into the window that its open in, without taking up the entire screen. Extremely good for productivity reasons. Now, the only slight issue that I have is that sometimes I wanna easily swap back without needing to move the video tab to my main profile - and hoping that it's possible somehow without exposing myself to lax security practices - I found it might be possible when using fx-autoconfig - but it does concern me when it states "Please note that malicious external programs can now inject custom logic to Firefox even without elevated privileges just by modifying boot.sys.mjs or adding their own script files.". I essentially just want an true/false button for the full-screen-api.ignore-widgets setting instead of needing to swap profiles/manually enter about:config to swap the boolean value back and forth.