diff --git a/chrome/fake_tab_tooltip.css b/chrome/deprecated/fake_tab_tooltip.css
similarity index 89%
rename from chrome/fake_tab_tooltip.css
rename to chrome/deprecated/fake_tab_tooltip.css
index fc0844c..51759f7 100644
--- a/chrome/fake_tab_tooltip.css
+++ b/chrome/deprecated/fake_tab_tooltip.css
@@ -1,4 +1,4 @@
-/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/fake_tab_tooltip.css made available under Mozilla Public License v. 2.0
+/* Source file https://github.com/MrOtherGuy/firefox-csshacks/tree/master/chrome/deprecated/fake_tab_tooltip.css made available under Mozilla Public License v. 2.0
 See the above repository for updates as well as full license text. */
 
 /* This creates a fake tooltip-like box under hovered tab showing it's full title.
diff --git a/html_resources/tagmap.json b/html_resources/tagmap.json
index 48e74dd..5a7dcd2 100644
--- a/html_resources/tagmap.json
+++ b/html_resources/tagmap.json
@@ -42,7 +42,7 @@
 "fake_statusbar_w_bookmarksbar.css":["hack","status","toolbars","bookmarks"],
 "fake_urlbar_dropmarker.css":["urlbar","hack"],
 "fake_statusbar_w_menubar.css":["hack","status","toolbars","menubar"],
-"fake_tab_tooltip.css":["tab","hack","popup"],
+"deprecated/fake_tab_tooltip.css":["legacy"],
 "floating_findbar_on_top.css":["findbar"],
 "deprecated/full_width_urlbar_popup.css":["legacy"],
 "deprecated/google_style_urlbar_popup.css":["legacy"],
diff --git a/tags.csv b/tags.csv
index bccc3f0..5b24665 100644
--- a/tags.csv
+++ b/tags.csv
@@ -41,7 +41,7 @@ drag_window_from_urlbar.css,urlbar,windows
 fake_statusbar_w_bookmarksbar.css,hack,status,toolbars,bookmarks
 fake_urlbar_dropmarker.css,urlbar,hack
 fake_statusbar_w_menubar.css,hack,status,toolbars,menubar
-fake_tab_tooltip.css,tab,hack,popup
+deprecated/fake_tab_tooltip.css,legacy
 floating_findbar_on_top.css,findbar
 deprecated/full_width_urlbar_popup.css,legacy
 deprecated/google_style_urlbar_popup.css,legacy