--- a/browser/components/customizableui/test/browser.ini
+++ b/browser/components/customizableui/test/browser.ini
@@ -20,20 +20,24 @@ skip-if = os == "mac"
 [browser_887438_currentset_shim.js]
 [browser_888817_currentset_updating.js]
 [browser_889120_customize_tab_merging.js]
 [browser_890140_orphaned_placeholders.js]
 [browser_890262_destroyWidget_after_add_to_panel.js]
 [browser_892955_isWidgetRemovable_for_removed_widgets.js]
 [browser_892956_destroyWidget_defaultPlacements.js]
 [browser_909779_overflow_toolbars_new_window.js]
+skip-if = os == "linux"
+
 [browser_901207_searchbar_in_panel.js]
 [browser_913972_currentset_overflow.js]
+skip-if = os == "linux"
 
 [browser_914138_widget_API_overflowable_toolbar.js]
+skip-if = os == "linux"
 
 [browser_914863_disabled_help_quit_buttons.js]
 [browser_918049_skipintoolbarset_dnd.js]
 [browser_923857_customize_mode_event_wrapping_during_reset.js]
 [browser_927717_customize_drag_empty_toolbar.js]
 [browser_932928_show_notice_when_palette_empty.js]
 
 [browser_934113_menubar_removable.js]