Add an Adblocker into firefox source code
How do I Add an AdBlocker To firefox source code Using an addon?
How do I Add an AdBlocker To firefox source code Using an addon?
Opaite Mbohovái (3)
Firefox has a basic adblocker built in but if you need more deeper adblocker you need to check the Firefox Addon page and find out that works for you.
https://addons.mozilla.org/en-US/firefox/search/?q=adblocker
This may be relevant to your question.
https://support.mozilla.org/en-US/kb/where-go-developer-support
You can use a policy to force installing an extension.