@chuchkyschild thanks mate. with ScriptSafe enabled, i checked on ipleak.com/full-report/ and yeah no effect on WebRTC IP leak.
i was looking at these addons WebRTC Protect, WebRTC Control. will try them out.
As for now, i use uBlock Origin, pricavy badger, disable WebGL
@rudrick were you using uMatrix? if so, does it prevent WebRTC IP leak?