diff --git a/src/common/header.css b/src/common/header.css
index ce8d04b..31f35e4 100644
--- a/src/common/header.css
+++ b/src/common/header.css
@@ -1,4 +1,6 @@
-/*                  _     _ _                             __ _
+/* Copyright 2021 Oliver Smith, Arnaud Ferraris
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *                  _     _ _                             __ _
  *  _ __ ___   ___ | |__ (_) | ___        ___ ___  _ __  / _(_) __ _
  * | '_ ` _ \ / _ \| '_ \| | |/ _ \_____ / __/ _ \| '_ \| |_| |/ _` |
  * | | | | | | (_) | |_) | | |  __/_____| (_| (_) | | | |  _| | (_| |
diff --git a/src/userChrome/appMenu.css b/src/userChrome/appMenu.css
index ad04440..baf1430 100644
--- a/src/userChrome/appMenu.css
+++ b/src/userChrome/appMenu.css
@@ -1,48 +1,48 @@
 /* Copyright 2021 Oliver Smith
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @media (max-width: 700px) {
-	.subviewbutton,
-	.toolbaritem-combined-buttons {
-	  font-size: 8pt;
-	}
+    .subviewbutton,
+    .toolbaritem-combined-buttons {
+        font-size: 8pt;
+    }
 
-	#appMenu-protection-report-button,
-	#appMenuRestoreLastSession,
-	#appMenu-customize-button,
-	#appMenu-open-file-button,
-	#appMenu-more-button,
-	#appMenu-developer-button,
-	#appMenu-whatsnew-button,
-	#appMenu-help-button,
-	#appMenu-quit-button {
-	  display: none;
-	}
+    #appMenu-protection-report-button,
+    #appMenuRestoreLastSession,
+    #appMenu-customize-button,
+    #appMenu-open-file-button,
+    #appMenu-more-button,
+    #appMenu-developer-button,
+    #appMenu-whatsnew-button,
+    #appMenu-help-button,
+    #appMenu-quit-button {
+        display: none;
+    }
 
-	toolbarseparator {
-	  display: none;
-	}
+    toolbarseparator {
+        display: none;
+    }
 
-	/* Zoom/edit: move controls to the left (so they are visible), hide
-	 * label (it's obvious what they do) and spacer */
-	#appMenu-zoom-controls spacer,
-	#appMenu-zoom-controls label,
-	#appMenu-edit-controls spacer,
-	#appMenu-edit-controls label {
-	  display: none;
-	}
+    /* Zoom/edit: move controls to the left (so they are visible), hide
+     * label (it's obvious what they do) and spacer */
+    #appMenu-zoom-controls spacer,
+    #appMenu-zoom-controls label,
+    #appMenu-edit-controls spacer,
+    #appMenu-edit-controls label {
+        display: none;
+    }
 
-	/* Zoom/edit: center the controls somewhat */
-	#appMenu-zoom-controls {
-	  padding-left: 20px;
-	}
-	#appMenu-edit-controls {
-	  padding-left: 15px;
-	}
+    /* Zoom/edit: center the controls somewhat */
+    #appMenu-zoom-controls {
+        padding-left: 20px;
+    }
+    #appMenu-edit-controls {
+        padding-left: 15px;
+    }
 
-	/* Zoom: hide fullscreen button (not possible to exit fullscreen
-	 * without keyboard) */
-	#appMenu-fullscreen-button {
-	  display: none;
-	}
+    /* Zoom: hide fullscreen button (not possible to exit fullscreen
+     * without keyboard) */
+    #appMenu-fullscreen-button {
+        display: none;
+    }
 }
diff --git a/src/userChrome/findbar.css b/src/userChrome/findbar.css
index 151ca65..d0bcfc4 100644
--- a/src/userChrome/findbar.css
+++ b/src/userChrome/findbar.css
@@ -1,27 +1,27 @@
 /* Copyright 2021 Oliver Smith
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @media (max-width: 700px) {
-	/* Findbar */
-	[anonid="findbar-textbox-wrapper"] {
-	  min-width: 160px;
-	  width: 160px;
-	}
-	[anonid="findbar-textbox"] {
-	 max-width: 100px;
-	 min-width: 100px;
-	 width: 100px;
-	}
-	.findbar-button {
-	  font-size: 6pt;
-	}
-	/* Save space */
-	.findbar-match-diacritics,
-	.findbar-entire-word,
-	.found-matches,
-	.findbar-find-status,
-	.find-status-icon
-	{
-	  display: none;
-	}
+    /* Findbar */
+    [anonid="findbar-textbox-wrapper"] {
+        min-width: 160px;
+        width: 160px;
+    }
+    [anonid="findbar-textbox"] {
+        max-width: 100px;
+        min-width: 100px;
+        width: 100px;
+    }
+    .findbar-button {
+        font-size: 6pt;
+    }
+    /* Save space */
+    .findbar-match-diacritics,
+    .findbar-entire-word,
+    .found-matches,
+    .findbar-find-status,
+    .find-status-icon
+    {
+        display: none;
+    }
 }
diff --git a/src/userChrome/popups.css b/src/userChrome/popups.css
index 846bb0b..1389ec5 100644
--- a/src/userChrome/popups.css
+++ b/src/userChrome/popups.css
@@ -1,33 +1,33 @@
 /* Copyright 2021 Oliver Smith
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @media (max-width: 700px) {
-	/* Popup notifications (install add-on etc.): set max-width, remove icon and
-	 * make font smaller so it fits the box */
-	.popup-notification-body-container {
-	  max-width: 170px;
-	}
-	.popup-notification-icon {
-	  display: none;
-	}
-	.popup-notification-body {
-	  font-size: 4pt;
-	}
+    /* Popup notifications (install add-on etc.): set max-width, remove icon and
+     * make font smaller so it fits the box */
+    .popup-notification-body-container {
+        max-width: 170px;
+    }
+    .popup-notification-icon {
+        display: none;
+    }
+    .popup-notification-body {
+        font-size: 4pt;
+    }
 
-	/* "Site information" (displayed when clicking the lock icon)
-	 * Making everything so small doesn't look terribly nice, but least it fits the
-	 * popup and everything is clickable. */
-	#identity-popup-multiView .panel-viewcontainer {
-	  font-size: 4pt;
-	}
-	#identity-popup-clear-sitedata-footer,
-	#identity-popup-more-info-footer {
-	  font-size: 7pt;
-	}
+    /* "Site information" (displayed when clicking the lock icon)
+     * Making everything so small doesn't look terribly nice, but least it fits the
+     * popup and everything is clickable. */
+    #identity-popup-multiView .panel-viewcontainer {
+        font-size: 4pt;
+    }
+    #identity-popup-clear-sitedata-footer,
+    #identity-popup-more-info-footer {
+        font-size: 7pt;
+    }
 
-	/* "Protections" (displayed when clicking the shield icon)
-	 * Same reasoning for small font, as for identity-popup above. */
-	#protections-popup-mainView {
-	  font-size: 4pt;
-	}
+    /* "Protections" (displayed when clicking the shield icon)
+     * Same reasoning for small font, as for identity-popup above. */
+    #protections-popup-mainView {
+        font-size: 4pt;
+    }
 }
diff --git a/src/userChrome/root.css b/src/userChrome/root.css
index 2e14794..2f4c263 100644
--- a/src/userChrome/root.css
+++ b/src/userChrome/root.css
@@ -1,7 +1,7 @@
 /* Copyright 2021 Oliver Smith
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 /* Reduce minimum window width */
 :root {
-  min-width: 300px !important;
+    min-width: 300px !important;
 }
diff --git a/src/userChrome/urlbar.css b/src/userChrome/urlbar.css
index 0816f90..45cce03 100644
--- a/src/userChrome/urlbar.css
+++ b/src/userChrome/urlbar.css
@@ -1,46 +1,46 @@
 /* Copyright 2021 Oliver Smith
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 /* Reduce minimum window width */
 #urlbar-container {
-  min-width: 150px !important;
+    min-width: 150px !important;
 }
 
 @media (max-width: 700px) {
-	/* Remove various buttons left and right of the URL bar:
-	   - forward-button: also reachable via longpress of back button
-	   - home-button: not important enough
-	   - customizableui-special-spring: empty space
-	   - library-button: also reachable via PanelUI-menu-button
-	   - sidebar-button: not useful on mobile (we try to gain horizontal space)
-	   - fxa-toolbar-menu-button: firefox cloud stuff, also reachable via
-	     #PanelUI-menu-button
-	*/
-	/* #back-button */
-	#forward-button,
-	/* #reload-button */
-	#home-button,
-	#customizableui-special-spring1,
-	/* (urlbar) */
-	#customizableui-special-spring2,
-	#library-button,
-	#sidebar-button,
-	#fxa-toolbar-menu-button
-	/* #PanelUI-menu-button */ {
-	  display: none !important;
-	}
+    /* Remove various buttons left and right of the URL bar:
+       - forward-button: also reachable via longpress of back button
+       - home-button: not important enough
+       - customizableui-special-spring: empty space
+       - library-button: also reachable via PanelUI-menu-button
+       - sidebar-button: not useful on mobile (we try to gain horizontal space)
+       - fxa-toolbar-menu-button: firefox cloud stuff, also reachable via
+         #PanelUI-menu-button
+    */
+    /* #back-button */
+    #forward-button,
+    /* #reload-button */
+    #home-button,
+    #customizableui-special-spring1,
+    /* (urlbar) */
+    #customizableui-special-spring2,
+    #library-button,
+    #sidebar-button,
+    #fxa-toolbar-menu-button
+    /* #PanelUI-menu-button */ {
+        display: none !important;
+    }
 
-	/* Smaller font: show more of the URL */
-	#urlbar-input {
-	  font-size: 9pt !important;
-	}
+    /* Smaller font: show more of the URL */
+    #urlbar-input {
+        font-size: 9pt !important;
+    }
 
-	/* Focused urlbar: hide all icons around it, so we have more space to edit the URL */
-	#urlbar[focused] #identity-box,
-	#urlbar[focused] #tracking-protection-icon-container,
-	/* #urlbar-input */
-	#urlbar[focused] #reader-mode-button,
-	#urlbar[focused] #pageActionButton {
-	  display: none;
-	}
+    /* Focused urlbar: hide all icons around it, so we have more space to edit the URL */
+    #urlbar[focused] #identity-box,
+    #urlbar[focused] #tracking-protection-icon-container,
+    /* #urlbar-input */
+    #urlbar[focused] #reader-mode-button,
+    #urlbar[focused] #pageActionButton {
+        display: none;
+    }
 }
diff --git a/src/userContent/addons.css b/src/userContent/addons.css
index 2755b0f..4e20445 100644
--- a/src/userContent/addons.css
+++ b/src/userContent/addons.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:addons"), url-prefix("about:addons") {
     :root {
diff --git a/src/userContent/config.css b/src/userContent/config.css
index a1a80b2..aa75566 100644
--- a/src/userContent/config.css
+++ b/src/userContent/config.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:config") {
     #search-container,
diff --git a/src/userContent/license.css b/src/userContent/license.css
index 6e5c8fd..f3d4de0 100644
--- a/src/userContent/license.css
+++ b/src/userContent/license.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:license") {
     @media (max-width: 500px) {
diff --git a/src/userContent/logins.css b/src/userContent/logins.css
index b5ae43a..ff9d283 100644
--- a/src/userContent/logins.css
+++ b/src/userContent/logins.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:logins") {
     .container {
diff --git a/src/userContent/policies.css b/src/userContent/policies.css
index 022b494..7fac1cf 100644
--- a/src/userContent/policies.css
+++ b/src/userContent/policies.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:policies"), url-prefix("about:policies") {
     @media (max-width: 830px) {
diff --git a/src/userContent/preferences.css b/src/userContent/preferences.css
index 70df5de..5d16760 100644
--- a/src/userContent/preferences.css
+++ b/src/userContent/preferences.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document regexp("about:preferences.*") {
     .sticky-container {
@@ -14,7 +14,7 @@
     .fxaMobilePromo {
         display: none;
     }
-    
+
     @media (max-width: 700px) {
         .fxaSyncIllustration {
             display: none;
diff --git a/src/userContent/protections.css b/src/userContent/protections.css
index 27f23ca..c39ea07 100644
--- a/src/userContent/protections.css
+++ b/src/userContent/protections.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:protections") {
     #report-content {
diff --git a/src/userContent/rights.css b/src/userContent/rights.css
index c5d9505..336798b 100644
--- a/src/userContent/rights.css
+++ b/src/userContent/rights.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document url("about:rights") {
     @media (max-width: 500px) {
diff --git a/src/userContent/sidebar.css b/src/userContent/sidebar.css
index e6023de..9dd9701 100644
--- a/src/userContent/sidebar.css
+++ b/src/userContent/sidebar.css
@@ -1,5 +1,5 @@
 /* Copyright 2021 plata, Anri Dellal
-   SPDX-License-Identifier: GPL-3.0-or-later */
+ * SPDX-License-Identifier: GPL-3.0-or-later */
 
 @-moz-document regexp("about:(preferences|addons|policies).*") {
     .category-icon {