diff --git a/module/common/Firefox.nix b/module/common/Firefox.nix
index cfcd3ca..b578572 100644
--- a/module/common/Firefox.nix
+++ b/module/common/Firefox.nix
@@ -5,43 +5,7 @@
 		enable  = true;
 		package = pkgs.firefox-esr;
 		languagePacks = [ "en-US" "ru" ];
-		autoConfig = ''
-			// Bookmarks.
-			lockPref("browser.microsummary.enabled",          true);
-			lockPref("browser.places.importBookmarksHTML",    true);
-			lockPref("browser.toolbars.bookmarks.visibility", "never");
-
-			// Fonts.
-			pref("browser.display.use_document_fonts", 0);
-			lockPref("font.minimum-size.x-cyrillic", 12);
-			lockPref("font.minimum-size.x-unicode",  12);
-			lockPref("font.minimum-size.x-western",  12);
-			lockPref("font.name.monospace.x-cyrillic", "Terminess Nerd Font Mono");
-			lockPref("font.name.monospace.x-unicode",  "Terminess Nerd Font Mono");
-			lockPref("font.name.monospace.x-western",  "Terminess Nerd Font Mono");
-			lockPref("font.name.sans-serif.x-cyrillic", "SF Pro Text");
-			lockPref("font.name.sans-serif.x-unicode",  "SF Pro Text");
-			lockPref("font.name.sans-serif.x-western",  "SF Pro Text");
-			lockPref("font.name.serif.x-cyrillic", "SF Pro Text");
-			lockPref("font.name.serif.x-unicode",  "SF Pro Text");
-			lockPref("font.name.serif.x-western",  "SF Pro Text");
-
-			// Animations.
-			lockPref("browser.fullscreen.animateUp", 0);
-			lockPref("browser.fullscreen.autohide", true);
-
-			// Homepage.
-			lockPref("browser.newtabpage.enabled", false);
-			lockPref("browser.startup.homepage", "https://home.voronind.com/");
-			lockPref("browser.startup.page", 3);
-
-			// Passwords.
-			lockPref("signon.prefillForms",    false);
-			lockPref("signon.rememberSignons", false);
-
-			// Formats.
-			lockPref("image.jxl.enabled", true);
-		'';
+		autoConfig = builtins.readFile ./firefox/Config.js;
 		policies = {
 			ManagedBookmarks = [
 				{
diff --git a/module/common/firefox/Config.js b/module/common/firefox/Config.js
new file mode 100644
index 0000000..9fe2f7e
--- /dev/null
+++ b/module/common/firefox/Config.js
@@ -0,0 +1,35 @@
+// Bookmarks.
+lockPref("browser.microsummary.enabled",          true);
+lockPref("browser.places.importBookmarksHTML",    true);
+lockPref("browser.toolbars.bookmarks.visibility", "never");
+
+// Fonts.
+pref("browser.display.use_document_fonts", 0);
+lockPref("font.minimum-size.x-cyrillic", 12);
+lockPref("font.minimum-size.x-unicode",  12);
+lockPref("font.minimum-size.x-western",  12);
+lockPref("font.name.monospace.x-cyrillic", "Terminess Nerd Font Mono");
+lockPref("font.name.monospace.x-unicode",  "Terminess Nerd Font Mono");
+lockPref("font.name.monospace.x-western",  "Terminess Nerd Font Mono");
+lockPref("font.name.sans-serif.x-cyrillic", "SF Pro Text");
+lockPref("font.name.sans-serif.x-unicode",  "SF Pro Text");
+lockPref("font.name.sans-serif.x-western",  "SF Pro Text");
+lockPref("font.name.serif.x-cyrillic", "SF Pro Text");
+lockPref("font.name.serif.x-unicode",  "SF Pro Text");
+lockPref("font.name.serif.x-western",  "SF Pro Text");
+
+// Animations.
+lockPref("browser.fullscreen.animateUp", 0);
+lockPref("browser.fullscreen.autohide", true);
+
+// Homepage.
+lockPref("browser.newtabpage.enabled", false);
+lockPref("browser.startup.homepage", "https://home.voronind.com/");
+lockPref("browser.startup.page", 3);
+
+// Passwords.
+lockPref("signon.prefillForms",    false);
+lockPref("signon.rememberSignons", false);
+
+// Formats.
+lockPref("image.jxl.enabled", true);