diff --git a/docs/Changelog.md b/docs/Changelog.md
index b5ad470..e3d1d59 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -1,6 +1,42 @@
 This changelog will be used from now on to document changes in a precise manner, with a list of changes for each setting version.
 Setting versions are documented using the pref `librewolf.cfg.version`, available in about:config.
 
+## 3.1
+
+**target commit**:
+
+**base librewolf version**: 94.x
+
+**References**:
+- the added prefs are all defense in depth.
+- `drawInTitlebar` was causing errors for some users, the bug was reproduced. Linux users might experience a different toolbar behavior because of this change.
+- the default value for scopes seems like a better choice than changing it.
+- `offlineApps` can be safely cleared without using logins, in fact it was most likely cleared by other sanitazion techniques regardless.
+
+**Notes**: please notify users about the new website, thanks to @maltejur for helping with the migration.
+
+#### Added preferences
+```
+defaultPref("webchannel.allowObject.urlWhitelist", ""); // remove webchannel whitelist
+lockPref("toolkit.telemetry.coverage.opt-out", true); // hidden
+defaultPref("privacy.cpd.offlineApps", true); // for consistency with clearOnShutdown prefs
+```
+
+#### Removed preferences
+```
+defaultPref("extensions.autoDisableScopes", 11); // bring back to default
+defaultPref("browser.tabs.drawInTitlebar", true); // bring back to default
+```
+
+#### Changed preferences
+```
+defaultPref("privacy.clearOnShutdown.offlineApps", true); // can be cleared
+defaultPref("app.support.baseURL", "https://librewolf.net/docs/faq/#");
+defaultPref("browser.search.searchEnginesURL", "https://librewolf.net/docs/faq/#how-do-i-add-a-search-engine");
+defaultPref("browser.geolocation.warning.infoURL", "https://librewolf.net/docs/faq/#how-do-i-enable-location-aware-browsing");
+defaultPref("app.feedback.baseURL", "https://librewolf.net/#questions");
+```
+
 ## 3.0
 
 **target commit**: f0a2d5d70657cc87348282d6faaf72edff8bf304 and 4e0895a299ec99066f119d8ce1a2923fc91aa465
diff --git a/librewolf.cfg b/librewolf.cfg
index 6afe37a..7590ce9 100755
--- a/librewolf.cfg
+++ b/librewolf.cfg
@@ -9,7 +9,7 @@
  
  */
 
-defaultPref("librewolf.cfg.version", "3.0");
+defaultPref("librewolf.cfg.version", "3.1");
 
 // -------------------------------
 // # SANITIZING, TP, SESSIONS
@@ -26,19 +26,21 @@ defaultPref("librewolf.cfg.version", "3.0");
 pref("browser.contentblocking.category", "strict");
 
 defaultPref("network.cookie.cookieBehavior", 5); // dFPI is default for strict mode, but enforce
-defaultPref("network.cookie.lifetimePolicy", 2); // keep cookies until the browser is closed then delete everything minus exceptions
+defaultPref("network.cookie.lifetimePolicy", 2); // keep cookies until end of the session, the clear
 
 // make third party and http cookies session-only
 defaultPref("network.cookie.thirdparty.sessionOnly", true);
 defaultPref("network.cookie.thirdparty.nonsecureSessionOnly", true);
 
 /**
- this way of sanitizing would override the exceptions set by the users and just delete everything,
- therefore we tell it to delete everything but ignore data needed to stay logged into websites set
- manually as exceptions.
+ this way of sanitizing cookies would override the exceptions set by the users and just delete everything,
+ we disable it but cookies are still cleared per session unless exceptions are set.
+ all the cleaning prefs are set to true except for siteSetting and offlineApps.
+ siteSettings shouldn't be cleared as it stores exceptions set by users.
 */
 defaultPref("privacy.clearOnShutdown.cookies", false);
-defaultPref("privacy.clearOnShutdown.offlineApps", false);
+defaultPref("privacy.clearOnShutdown.offlineApps", true);
+defaultPref("privacy.cpd.offlineApps", true);
 defaultPref("privacy.sanitize.sanitizeOnShutdown", true);
 
 // disable browsing, search and form history
@@ -310,11 +312,11 @@ defaultPref("devtools.selfxss.count", 0); // see https://gitlab.com/librewolf-co
 
 // misc
 defaultPref("browser.shell.checkDefaultBrowser", false); // do not check if default browser
-defaultPref("browser.tabs.drawInTitlebar", true); // hide titlebar
 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("webchannel.allowObject.urlWhitelist", ""); // remove webchannel whitelist
 
 // --------------------------------------
 // # EXTENSIONS
@@ -327,8 +329,7 @@ defaultPref("browser.tabs.loadBookmarksInTabs", true); // always open bookmarks
 defaultPref("extensions.webextensions.restrictedDomains", "");
 
 // set extensions scopes
-defaultPref("extensions.enabledScopes", 5);
-defaultPref("extensions.autoDisableScopes", 11);
+defaultPref("extensions.enabledScopes", 5); // hidden
 
 defaultPref("extensions.postDownloadThirdPartyPrompt", false); // force install prompt for thrid party extensions 
 
@@ -447,7 +448,8 @@ lockPref("toolkit.telemetry.reportingpolicy.firstRun", false); // default
 lockPref("toolkit.telemetry.cachedClientID", "");
 lockPref("toolkit.telemetry.previousBuildID", "");
 lockPref("toolkit.telemetry.server_owner", "");
-lockPref("toolkit.coverage.opt-out", true); // [HIDDEN PREF]
+lockPref("toolkit.coverage.opt-out", true); // hidden
+lockPref("toolkit.telemetry.coverage.opt-out", true); // hidden
 lockPref("toolkit.coverage.enabled", false);
 lockPref("toolkit.coverage.endpoint.base", "");
 lockPref("toolkit.crashreporter.infoURL", "");