Document some prefs in user.js

I have added some documentation for all the prefs I know of, would make it easier to manage this file in the future

Author: futureisfoss

usr/share/webapp-manager/firefox/profile/user.js

@@ -8,11 +8,21 @@ user_pref("browser.ctrlTab.previews", true);
 user_pref("browser.tabs.warnOnClose", false);
 user_pref("plugin.state.flash", 2);
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
+
+// Always show titlebar on top of window
 user_pref("browser.tabs.drawInTitlebar", false);
 user_pref("browser.tabs.inTitlebar", 0);
+
+// Enable strict mode for cookie isolation and enhanced privacy
 user_pref("browser.contentblocking.category", "strict");
+
+// Don't clear cookies in LibreWolf (and other Firefox forks)
 user_pref("privacy.clearOnShutdown.offlineApps", false);
 user_pref("privacy.sanitize.sanitizeOnShutdown", false);
 user_pref("privacy.sanitize.timeSpan", 1);
+
+// Don't show translations popups
 user_pref("browser.translations.automaticallyPopup", false);
+
+// Open links in new window
 user_pref("browser.link.open_newwindow", 2);