diff --git a/modules/desktop/firefox.nix b/modules/desktop/firefox.nix
index 19a4b5f..270484c 100644
--- a/modules/desktop/firefox.nix
+++ b/modules/desktop/firefox.nix
@@ -14,12 +14,16 @@
         Preferences = builtins.mapAttrs
           (n: v: { Value = v; Status = "locked"; })
           {
+            "accessibility.force_disabled" = 1;
             "browser.aboutConfig.showWarning" = false;
             "browser.chrome.toolbar_tips" = false; # https://bugzilla.mozilla.org/show_bug.cgi?id=148624
             "browser.contentblocking.category" = "strict";
+            "browser.tabs.firefox-view" = false;
+            "browser.uitour.enabled" = false;
             "browser.zoom.siteSpecific" = false;
             "extensions.formautofill.addresses.enabled" = false;
             "extensions.formautofill.creditCards.enabled" = false;
+            "extensions.formautofill.heuristics.enabled" = false;
             "network.IDN_show_punycode" = true;
             "ui.key.menuAccessKeyFocuses" = false;
           };