1. # firefox/iceweasel/icecat/librewolf/etc... hardening, apply to about:config
2. # Commented out lines are set by default in iceweasel and can be skipped if you use iceweasel. Otherwise, make sure to check them.
3.  
4.  
5. # Basic
6.  
7. #dom.push.serverURL = ""
8. #browser.selfsupport.url = ""
9. network.captive-portal-service.enabled = false
10. #pocket.enabled = false
11. privacy.firstparty.isolate = true
12. #privacy.trackingprotection.fingerprinting.enabled = true
13. #privacy.trackingprotection.cryptomining.enabled = true
14. privacy.trackingprotection.enabled = true
15. #browser.send_pings = false
16. browser.urlbar.speculativeConnect.enabled = false
17. #dom.event.clipboardevents.enabled = false
18. #media.eme.enabled = false
19. #media.gmp-widevinecdm.enabled = false
20. media.navigator.enabled = false
21. #network.cookie.cookieBehavior = 1
22. network.http.referer.XOriginPolicy = 2
23. network.http.referer.XOriginTrimmingPolicy = 2
24. webgl.disabled = true
25. browser.sessionstore.privacy_level = 2
26. beacon.enabled = false
27. #browser.safebrowsing.downloads.remote.enabled = false
28. #network.dns.disablePrefetch = true
29. #network.dns.disablePrefetchFromHTTPS = true
30. network.predictor.enabled = false
31. #network.predictor.enable-prefetch = false
32. #network.prefetch-next = false
33. #network.IDN_show_punycode = true
34. identity.fxaccounts.enabled = false
35.  
36.  
37. # WebRTC
38.  
39. media.peerconnection.enabled = false
40. media.peerconnection.turn.disable = true
41. media.peerconnection.use_document_iceservers = false
42. media.peerconnection.video.enabled = false
43. media.peerconnection.identity.timeout = 1
44.  
45.  
46. # JIT (disables just-in-time javascript compiler, might have a small performance impact, or in some cases result in better performance)
47.  
48. javascript.options.baselinejit = false
49. javascript.options.ion = false
50. javascript.options.wasm = false
51. javascript.options.asmjs = false
52.  
53.  
54. # optional
55.  
56. privacy.resistFingerprinting = true