diff --git a/about_pages_dark_mode/about_sessionrestore_dark_mode.css b/about_pages_dark_mode/about_sessionrestore_dark_mode.css
deleted file mode 100644
index 1024610..0000000
--- a/about_pages_dark_mode/about_sessionrestore_dark_mode.css
+++ /dev/null
@@ -1,31 +0,0 @@
-@-moz-document url(about:sessionrestore) {
-
-	html, body, treechildren {
-		background: #323234 !important;
-		color: #ccc !important;
-	}
-
-	treecol {
-		background: #424040 !important;
-		color: #d2d2d2 !important;
-	}
-
-	treecol:hover {
-		text-decoration: underline !important;
-	}
-
-	button {
-		background-color: #292929 !important;
-		color: #ccc !important;
-		border: 1px #ccc solid !important;
-	}
-
-	button:hover {
-		background: #222 !important;
-	}
-	
-	#tabsToggle {
-		padding-inline-end: 30px !important;
-	}
-
-}
\ No newline at end of file