{ pkgs, userDetails, ... }: {
	programs.firefox = {
		enable = true;
		arkenfox.enable = true;
		profiles = let
			search = {
				engines = {
					"Timmy Search" = {
						urls = [{
							template = "https://search.tjkeller.xyz/search";
							params = [ { name = "q"; value = "{searchTerms}"; } ];
						}];
						iconURI = "https://search.tjkeller.xyz/static/themes/simple/img/favicon.svg";  # TODO doesn't seem to work
					};
					"Nix Packages" = {
						urls = [{
							template = "https://search.nixos.org/packages";
							params = [ { name = "query"; value = "{searchTerms}"; } ];
						}];
						icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
						definedAliases = [ "@np" ];
					};
					"NixOS Options" = {
						urls = [{
							template = "https://search.nixos.org/options";
							params = [ { name = "query"; value = "{searchTerms}"; } ];
						}];
						icon = "${pkgs.nixos-icons}/share/icons/hicolor/scalable/apps/nix-snowflake.svg";
						definedAliases = [ "@no" ];
					};
				};
				default = "Timmy Search";
				privateDefault = "Timmy Search";
				force = true;  # Overwrite old
			};
			userChrome = builtins.readFile ./resources/firefox/userChrome.css;
			arkenfox = {
				enable = true;
				enableAllSections = true;
				"0100"."0102"."browser.startup.page".value = 3;  # 0=blank, 1=home, 2=last visited page, 3=resume previous session
				"0100"."0103"."browser.startup.homepage".enable = false;
				"0100"."0104"."browser.newtabpage.enabled".enable = false;
				#"2800"."2811"."privacy.clearOnShutdown.history".enable = false;
			};
			settings = {
				"browser.compactmode.show" = true;
				"browser.uiCustomization.state" = builtins.readFile ./resources/firefox/uiCustomization.json;  # Toolbar etc.
				"browser.uidensity" = 1;  # Compact
				"toolkit.legacyUserProfileCustomizations.stylesheets" = true;  # userchrome

				"app.normandy.first_run" = false;
				"browser.aboutConfig.showWarning" = false;  # arkenfox does
				"browser.download.dir" = userDetails.home.downloads;
				"browser.newtabpage.activity-stream.feeds.section.topstories" = false;
				"browser.newtabpage.activity-stream.feeds.topsites" = false;
				"browser.urlbar.suggest.topsites" = false;
				"devtools.toolbox.host" = "window";
				"dom.push.enabled" = false;  #
				"extensions.pocket.enabled" = false;
				"general.smoothScroll" = false;
			};
			workSettings = settings // {
				"extensions.activeThemeID" = "firefox-compact-dark@mozilla.org";  # Use builtin dark theme instead of system theme
			};
		in {
			Personal = {
				id = 0;
				isDefault = true;
				inherit search;
				inherit userChrome;
				inherit arkenfox;
				inherit settings;
			};
			Work = {
				id = 1;
				inherit search;
				inherit userChrome;
				inherit arkenfox;
				settings = workSettings;
			};
		};
	};
}