diff --git a/modules/firefox.nix b/modules/firefox.nix
index 2acfcb3..947e2df 100644
--- a/modules/firefox.nix
+++ b/modules/firefox.nix
@@ -71,6 +71,8 @@
           "browser.download.start_downloads_in_tmp_dir" = true;
           # Ask where to save before starting download.
           "browser.download.useDownloadDir" = false;
+          # Restore previous session.
+          "browser.startup.page" = 3;
         };
 
         search.default = "Startpage";