diff --git a/distribution/policies.json b/distribution/policies.json
index e998a47..18f8e8c 100644
--- a/distribution/policies.json
+++ b/distribution/policies.json
@@ -30,7 +30,7 @@
         },
         "Extensions": {
             "Install": [
-                "https://addons.cdn.mozilla.net/user-media/addons/607454/ublock_origin-1.39.2-an+fx.xpi"
+                "https://addons.cdn.mozilla.net/user-media/addons/607454/ublock_origin-1.40.2-an+fx.xpi"
             ],
             "Uninstall": [
                 "google@search.mozilla.org",
diff --git a/librewolf.cfg b/librewolf.cfg
index ea55b41..9d304a0 100755
--- a/librewolf.cfg
+++ b/librewolf.cfg
@@ -101,7 +101,6 @@ defaultPref("network.manage-offline-status", false); // let user control the off
 // pop-ups and window related preferences
 defaultPref("dom.disable_beforeunload", true); // disable "confirm you want to leave" pop-ups on close
 defaultPref("dom.disable_open_during_load", true); // block pop-ups windows
-defaultPref("dom.popup_maximum", 4); // limit maximum number of pop-ups 
 defaultPref("dom.popup_allowed_events", "click dblclick mousedown pointerdown"); // limit events that cause pop-ups
 defaultPref("dom.disable_window_move_resize", true); // block scripts from resizing windows
 defaultPref("browser.link.open_newwindow", 3); // open 'new windows' targeted links in 'new tab'
@@ -297,11 +296,6 @@ defaultPref("extensions.formautofill.creditCards.enabled", false);
 defaultPref("extensions.formautofill.creditCards.available", false);
 defaultPref("extensions.formautofill.heuristics.enabled", false);
 
-// mouse and input
-defaultPref("general.autoScroll", false); // prevent mouse middle click from triggering scrolling
-defaultPref("middlemouse.contentLoadURL", false); // prevent mouse middle click from opening links
-defaultPref("clipboard.autocopy", false); // disable autocopy to clibpboard
-
 // containers
 defaultPref("privacy.userContext.enabled", true); // enable containers
 defaultPref("privacy.userContext.ui.enabled", true);  // enable containers ui
@@ -314,14 +308,13 @@ defaultPref("accessibility.force_disabled", 1); // block accessibility services
 defaultPref("devtools.chrome.enabled", false); // disable chrome debugging tools
 defaultPref("devtools.debugger.remote-enabled", false); // default, disable remote debugging
 defaultPref("devtools.remote.adb.extensionURL", ""); // url to download ad extension
-defaultPref("devtools.selfxss.count", 0); // see https://gitlab.com/librewolf-community/browser/linux/-/issues/80
 
 // misc
 defaultPref("browser.shell.checkDefaultBrowser", false); // do not check if default browser
 defaultPref("browser.aboutConfig.showWarning", false); // disable about:config warning
 defaultPref("browser.download.autohideButton", false); // hide download button automatically
 defaultPref("browser.download.manager.addToRecentDocs", false); // do not add downloads to recents
-defaultPref("browser.tabs.loadBookmarksInTabs", true); // always open bookmarks in new tab
+defaultPref("middlemouse.contentLoadURL", false); // prevent mouse middle click from opening links
 defaultPref("webchannel.allowObject.urlWhitelist", ""); // remove webchannel whitelist
 
 // --------------------------------------