diff --git a/user.js b/user.js
index 89175c9..b8f6d09 100644
--- a/user.js
+++ b/user.js
@@ -657,6 +657,9 @@ user_pref("browser.download.alwaysOpenPanel", false);
 // -------------------------------------
 // Disable adding downloads to the system's "recent documents" list
 user_pref("browser.download.manager.addToRecentDocs", false);
+// -------------------------------------
+// Enable user interaction for security by always asking how to handle new mimetypes [FF101+]
+user_pref("browser.download.always_ask_before_handling_new_types", true);
 //
 // EXTENSIONS
 //
@@ -977,12 +980,6 @@ user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
 // user_pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2]
 // user_pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2]
 // -------------------------------------
-// Disable HTTP2
-// user_pref("network.http.spdy.enabled", false);
-// user_pref("network.http.spdy.enabled.deps", false);
-// user_pref("network.http.spdy.enabled.http2", false);
-// user_pref("network.http.spdy.websockets", false); // [FF65+]
-// -------------------------------------
 // Disable HTTP Alternative Services [FF37+]
 // user_pref("network.http.altsvc.enabled", false);
 // user_pref("network.http.altsvc.oe", false); // [DEFAULT: false FF94+]
@@ -1008,6 +1005,7 @@ user_pref("extensions.systemAddon.update.url", ""); // [FF44+]
 user_pref("network.cookie.cookieBehavior", 5);
 user_pref("privacy.partition.network_state.ocsp_cache", true);
 user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true);
+user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+]
 user_pref("privacy.trackingprotection.enabled", true);
 user_pref("privacy.trackingprotection.socialtracking.enabled", true);
 user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
@@ -1199,6 +1197,13 @@ user_pref("app.update.background.scheduling.enabled", false);
 // Enforce CSP (Content Security Policy)
 user_pref("security.csp.enable", true); // [DEFAULT: true]
 // -------------------------------------
+// FF100
+// Disable HTTP2 - replaced by network.http.http2* prefs
+// user_pref("network.http.spdy.enabled", false);
+// user_pref("network.http.spdy.enabled.deps", false);
+// user_pref("network.http.spdy.enabled.http2", false);
+// user_pref("network.http.spdy.websockets", false); // [FF65+]
+// -------------------------------------
 // Test user.js in about:config
 user_pref("_config.applied", true);
 //
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