Fix scope of the userChrome.css

userChrome.css

@@ -10,94 +10,96 @@ with tweaks to the spacing of drop-down menus, sizing of the tabs, and the margi
 
 ***/
 
-/*** Tighten up drop-down/context/popup menu spacing (8 Sep 2021) ***/
+@-moz-document url(chrome://browser/content/browser.xhtml) {
 
-menupopup:not(.in-menulist) > menuitem, 
+    /*** Tighten up drop-down/context/popup menu spacing (8 Sep 2021) ***/
-menupopup:not(.in-menulist) > menu {
+
+    menupopup:not(.in-menulist) > menuitem, 
+    menupopup:not(.in-menulist) > menu {
     padding-block: 6px !important; /* reduce to 3px, 2px, 1px or 0px as needed */ 
     min-height: unset !important; /* v92.0 - for padding below 4px */
-}
+    }
-:root {
+    :root {
     --arrowpanel-menuitem-padding: 6px 8px !important;
-}
+    }
 
-/*** Proton Tabs Tweaks ***/
+    /*** Proton Tabs Tweaks ***/
 
-/* Adjust tab corner shape, optionally remove space below tabs */
+    /* Adjust tab corner shape, optionally remove space below tabs */
 
-#tabbrowser-tabs {
+    #tabbrowser-tabs {
         --user-tab-rounding: 6px;
-}
+    }
 
-.tab-background {
+    .tab-background {
         border-radius: var(--user-tab-rounding) var(--user-tab-rounding) 0px 0px !important; /* Connected */
         margin-block: 3px 0 !important; /* Connected */
-}
+    }
-#scrollbutton-up, #scrollbutton-down { /* 6/10/2021 */
+    #scrollbutton-up, #scrollbutton-down { /* 6/10/2021 */
         border-top-width: 1px !important;
         border-bottom-width: 0 !important;
-}
+    }
 
-/* 1/16/2022 Tone down the Fx96 tab border with add-on themes in certain fallback situations */
+    /* 1/16/2022 Tone down the Fx96 tab border with add-on themes in certain fallback situations */
-.tab-background:is([selected], [multiselected]):-moz-lwtheme {
+    .tab-background:is([selected], [multiselected]):-moz-lwtheme {
         --lwt-tabs-border-color: rgba(0, 0, 0, 0.5) !important;
         border-bottom-color: transparent !important;
-}
+    }
-[brighttext="true"] .tab-background:is([selected], [multiselected]):-moz-lwtheme {
+    [brighttext="true"] .tab-background:is([selected], [multiselected]):-moz-lwtheme {
         --lwt-tabs-border-color: rgba(255, 255, 255, 0.5) !important;
         border-bottom-color: transparent !important;
-}
+    }
 
-/* Container color bar visibility */
+    /* Container color bar visibility */
-.tabbrowser-tab[usercontextid] > .tab-stack > .tab-background > .tab-context-line {
+    .tabbrowser-tab[usercontextid] > .tab-stack > .tab-background > .tab-context-line {
         margin: 0px max(calc(var(--user-tab-rounding) - 3px), 0px) !important;
         height: 3px;
-}
+    }
 
-/* Override Normal Density height to Compact Density height (plus room for context-line) only for tabs 1/16/2022 */
+    /* Override Normal Density height to Compact Density height (plus room for context-line) only for tabs 1/16/2022 */
 
-#TabsToolbar, #tabbrowser-tabs {
+    #TabsToolbar, #tabbrowser-tabs {
         --tab-min-height: 37px !important;
-}
+    }
         /* Tweak for covering a line at the bottom of the active tab on some themes 8/11/2021 */
-#main-window[sizemode="normal"] #toolbar-menubar[autohide="true"] + #TabsToolbar, 
+    #main-window[sizemode="normal"] #toolbar-menubar[autohide="true"] + #TabsToolbar, 
-#main-window[sizemode="normal"] #toolbar-menubar[autohide="true"] + #TabsToolbar #tabbrowser-tabs {
+    #main-window[sizemode="normal"] #toolbar-menubar[autohide="true"] + #TabsToolbar #tabbrowser-tabs {
         --tab-min-height: 36px !important;
-}
+    }
-#scrollbutton-up,
+    #scrollbutton-up,
-#scrollbutton-down {
+    #scrollbutton-down {
         border-top-width: 0 !important;
         border-bottom-width: 0 !important;
-}
+    }
 
         /* [Connected Tabs] Set a max height based on min-height plus margin-block: 1px 0 */
-#TabsToolbar, #TabsToolbar > hbox, #TabsToolbar-customization-target, #tabbrowser-arrowscrollbox  {
+    #TabsToolbar, #TabsToolbar > hbox, #TabsToolbar-customization-target, #tabbrowser-arrowscrollbox  {
         max-height: calc(var(--tab-min-height) + 1px) !important;
-}
+    }
         /* [Connected Tabs] Make sure tab attention dot isn't too low - 10 Dec 2022 */
-.tabbrowser-tab:is([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected="true"]),
+    .tabbrowser-tab:is([image], [pinned]) > .tab-stack > .tab-content[attention]:not([selected="true"]),
-.tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected="true"]),
+    .tabbrowser-tab > .tab-stack > .tab-content[pinned][titlechanged]:not([selected="true"]),
-#firefox-view-button[attention], .webextension-browser-action[attention="true"] {
+    #firefox-view-button[attention], .webextension-browser-action[attention="true"] {
     background-position-y: bottom 8px !important;
-}
+    }
 
-#TabsToolbar {
+    #TabsToolbar {
         --user-mute-button-height: 20px;  /* default size is 12px, site icon is 16px */
-}
+    }
 
-/* enlarge the move/mute button */
+    /* enlarge the move/mute button */
-.tab-icon-overlay:not([pinned], [sharing], [crashed]):is([soundplaying], [muted]) {
+    .tab-icon-overlay:not([pinned], [sharing], [crashed]):is([soundplaying], [muted]) {
         width: var(--user-mute-button-height) !important;
         height: var(--user-mute-button-height) !important;
-}
+    }
 
-/*** Improve toolbar ***/
+    /*** Improve toolbar ***/
-#personal-toolbar-empty-description, toolbarbutton.bookmark-item:not(.subviewbutton) {
+    #personal-toolbar-empty-description, toolbarbutton.bookmark-item:not(.subviewbutton) {
         margin: 1px 2px !important;
         padding: 3px;
-}
+    }
 
-#identity-box[pageproxystate="valid"].notSecureText > .identity-box-button, #identity-box[pageproxystate="valid"].chromeUI > .identity-box-button, #identity-box[pageproxystate="valid"].extensionPage > .identity-box-button, #urlbar-label-box {
+    #identity-box[pageproxystate="valid"].notSecureText > .identity-box-button, #identity-box[pageproxystate="valid"].chromeUI > .identity-box-button, #identity-box[pageproxystate="valid"].extensionPage > .identity-box-button, #urlbar-label-box {
         margin-left: 2px;
+    }
 }
-