I havent find a way to totally disable checking for update. What I see its rather 'update automatically' or 'check for updates but let me choose to install them' Nothing letting me disable 'checking for update' I dont need waterfox to check for update, I get new release from rss feed. I also Noticed it was checking often so really dont need that.
@danrobi11 You forgot to mention that's for Waterfox Current.
@danrobi11 Compile Waterfox locally with this config flag: --disable-updater.
Alternatively, override the DNS for the update check url.
Globally disabling update of a web browser that is not part of a package manager is very dangerous, but possible.