My biggest recommendation is to avoid extensions as much as you can.
- uBlockOrigin - An open-source content blocker
- Violentmonkey - Useful for scripting
- Redirector - Automatically redirects content based on user-defined rules
- NeverDecaf's chromium-web-store - Allows adding extensions from chrome web store on ungoogled-chromium
Extensions do not/cannot guarantee 100% protection, due to revoked access to workers (which causes leakage). They may be vulnerable when ToString() is requested.
- Jshelter - Defends against all types of Fingerprinting.
- Do not use it for Brave and Ungoogled Chromium, because these browsers have their own fingerprinting protections and by using fingerprint defender extensions will override their protection which causes leakage (as mentioned above), security and performance issues.