diff --git a/NOSTOW/firefoxExtentions/browseroverrides/less/github.less b/NOSTOW/firefoxExtentions/browseroverrides/less/github.less
index b02b15b5..567c1653 100644
--- a/NOSTOW/firefoxExtentions/browseroverrides/less/github.less
+++ b/NOSTOW/firefoxExtentions/browseroverrides/less/github.less
@@ -26,7 +26,8 @@ a{
 		color: @gb-dm-dark-aqua !important;
 	}
 }
-.text-gray{
+.text-gray,
+.text-gray-dark{
 	color: @gb-dm-fg3 !important;
 }
 
@@ -110,6 +111,8 @@ table.files td.icon{
 
 .blob-code-inner{
 	font-family: 'Iosevka';
+	background: @gb-lm-bg0;
+	color: @gb-lm-fg0;
 }
 
 /*
@@ -145,7 +148,8 @@ table.files td.icon{
 }
 
 .markdown-body .highlight pre, .markdown-body pre{
-	background-color: @gb-dm-bg0-hard;
+	background: @gb-lm-bg0;
+	color: @gb-lm-fg0;
 }
 
 
@@ -233,6 +237,9 @@ table.files td.icon{
 
 
 
+.js-signup-prompt{
+	display: none;
+}
 
 
 
diff --git a/NOSTOW/firefoxExtentions/browseroverrides/less/global.less b/NOSTOW/firefoxExtentions/browseroverrides/less/global.less
new file mode 100644
index 00000000..23469984
--- /dev/null
+++ b/NOSTOW/firefoxExtentions/browseroverrides/less/global.less
@@ -0,0 +1,13 @@
+@import "gruvbox-colours.less";
+
+body,
+.content{
+	font-family: opendyslexic;
+	background-color: @gb-dm-bg0;
+	color: @gb-dm-fg0;
+}
+
+h1, h2, h3, h4, h5, h6
+.h1, .h2, .h3, .h4, .h5, .h6{
+	color: @gb-dm-fg0;
+}
diff --git a/NOSTOW/firefoxExtentions/browseroverrides/less/protonmail.less b/NOSTOW/firefoxExtentions/browseroverrides/less/protonmail.less
new file mode 100644
index 00000000..6622cb12
--- /dev/null
+++ b/NOSTOW/firefoxExtentions/browseroverrides/less/protonmail.less
@@ -0,0 +1,94 @@
+@import "gruvbox-colours.less";
+
+.headerSecured-container{
+	background-color: @gb-dm-bg0-hard;
+}
+
+#ptSidebar{
+	background-color: @gb-dm-bg0;
+}
+
+.headerSecuredDesktop-logo{
+	background-color: @gb-dm-bg0;
+}
+
+.pm_toolbar{
+	background-color: @gb-dm-bg1;
+}
+
+.pm_buttons a, .pm_buttons button, .pm_buttons .pm_buttons-child,
+.appConfigBody-rows .chooseLayoutBtns-btn-rows, body:not(.appConfigBody-rows) .chooseLayoutBtns-btn-column{
+	background-color: @gb-dm-light-blue;
+	color: @gb-dm-fg1;
+	border-color: @gb-dm-dark-blue;
+	&:hover{
+		background-color: @gb-dm-dark-blue;
+		color: @gb-dm-fg1;
+	}
+}
+
+.sidebarApp-container .sidebar-btn-compose{
+	background-color: @gb-dm-dark-aqua;
+	border-color: @gb-dm-dark-aqua;
+	&:hover{
+		background-color: @gb-dm-light-aqua;
+	}
+}
+
+body #conversation-list-rows .conversation{
+	background-color: @gb-dm-bg0-hard;
+	color: @gb-dm-fg0;
+	.subject h4{
+		color: @gb-dm-fg0;
+	}
+	&.read{
+		background-color: @gb-dm-bg0-soft;
+		color: @gb-dm-fg2;
+	}
+}
+
+body #wrapper{
+	background-color: @gb-dm-bg0;
+	color: @gb-dm-fg0;
+}
+
+#conversation-view header h1{
+	color: @gb-dm-fg0;
+}
+
+#conversation-view .message{
+	border-color: @gb-dm-bg0-hard;
+	.summary, .details, .summary .summary-right{
+		background-color: @gb-dm-bg0;
+		color: @gb-dm-fg0;
+	}
+}
+
+.messageExtra-container > [class*="-container"]{
+	background-color: @gb-dm-bg1;
+	color: @gb-dm-fg0;
+}
+
+#conversation-view .message .summary .labels, #conversation-view .message .summary .location.folders, #conversation-view .message .summary .message-attachments, #conversation-view .message .summary .status, #conversation-view .message .summary .time{
+	background-color: @gb-dm-bg0;
+	color: @gb-dm-fg0;
+}
+
+.pm_dropdown{
+	background-color: @gb-dm-dark-blue;
+}
+.pm_dropdown > a:hover, .pm_dropdown > button:hover, .pm_dropdown > ul > li:hover{
+	color: @gb-dm-fg0 !important;
+}
+.pm_buttons{
+	color: @gb-dm-fg0;
+}
+.scrollbox-container{
+	&,&::before,&::after{
+		background-color: @gb-dm-dark-blue;
+	}
+}
+#conversation-view .frame, #pm_main{
+	background-color: @gb-dm-bg0;
+	color: @gb-dm-fg0;
+}
diff --git a/NOSTOW/firefoxExtentions/browseroverrides/less/stackoverflow.less b/NOSTOW/firefoxExtentions/browseroverrides/less/stackoverflow.less
index c999f80e..dc78c142 100644
--- a/NOSTOW/firefoxExtentions/browseroverrides/less/stackoverflow.less
+++ b/NOSTOW/firefoxExtentions/browseroverrides/less/stackoverflow.less
@@ -58,3 +58,7 @@ ul.comments-list .comment > *{
 	filter: invert(0);
 	}
 }
+
+pre, code{
+	background-color: @gb-dm-bg0-hard;
+}
diff --git a/NOSTOW/firefoxExtentions/browseroverrides/less/youtube.less b/NOSTOW/firefoxExtentions/browseroverrides/less/youtube.less
new file mode 100644
index 00000000..c2dff9dc
--- /dev/null
+++ b/NOSTOW/firefoxExtentions/browseroverrides/less/youtube.less
@@ -0,0 +1,143 @@
+@import "gruvbox-colours.less";
+
+//Main content
+//ytd-app{
+//	background-color: @gb-dm-bg0;
+//}
+//
+////Header
+//ytd-masthead{
+//	background-color: @gb-dm-bg0-hard;
+//}
+//
+////Sidebar
+//#guide-content.ytd-app{
+//	background-color: @gb-dm-bg0-hard;
+//}
+
+html:not(.style-scope){
+	--yt-spec-brand-background-solid: @gb-dm-bg0-hard;
+	--yt-spec-brand-background-primary: @gb-dm-bg0-hard;
+	--yt-spec-brand-background-secondary: green;
+	--yt-spec-general-background-a: @gb-dm-bg0;
+	--yt-spec-general-background-b: @gb-dm-bg0;
+	--yt-spec-general-background-c: pink;
+	--yt-spec-error-background: red;
+	--yt-spec-text-primary: @gb-dm-fg0;
+	--yt-spec-text-primary-inverse: green;
+	--yt-spec-text-secondary: @gb-dm-fg1;
+	--yt-spec-text-disabled: #909090;
+	--yt-spec-call-to-action: @gb-dm-dark-aqua;
+	--yt-spec-icon-active-other: @gb-dm-fg0;
+	--yt-spec-icon-inactive: #909090;
+	--yt-spec-icon-disabled: #ccc;
+	--yt-spec-badge-chip-background: rgba(0, 0, 0, 0.05);
+	--yt-spec-verified-badge-background: rgba(0, 0, 0, 0.15);
+	--yt-spec-suggested-action: #f2f8ff;
+	--yt-spec-button-chip-background-hover: rgba(0, 0, 0, 0.1);
+	--yt-spec-touch-response: #000;
+	--yt-spec-paper-tab-ink: rgba(0, 0, 0, 0.3);
+	--yt-spec-filled-button-text: #fff;
+	--yt-spec-call-to-action-inverse: #3ea6ff;
+	--yt-spec-brand-icon-active: @gb-dm-fg0;
+	--yt-spec-brand-icon-inactive: @gb-dm-fg4;
+	--yt-spec-brand-button-background: #c00;
+	--yt-spec-brand-link-text: #c00;
+	--yt-spec-filled-button-focus-outline: rgba(0, 0, 0, 0.6);
+	--yt-spec-call-to-action-button-focus-outline: rgba(6, 95, 212, 0.3);
+	--yt-spec-brand-text-button-focus-outline: rgba(204, 0, 0, 0.3);
+	--yt-spec-inactive-text-button-focus-outline: #ccc;
+	--yt-spec-brand-subscribe-button-background: var(--yt-spec-brand-button-background);
+	--yt-spec-wordmark-text: #282828;
+	--yt-spec-10-percent-layer: rgba(0, 0, 0, 0.1);
+	--yt-spec-selected-nav-text: #c00;
+	--yt-spec-themed-blue: #065fd4;
+	--yt-spec-themed-green: #107516;
+	--yt-spec-themed-overlay-background: rgba(255, 255, 255, 0.7);
+
+
+
+
+	--ytd-searchbox-border-color: hsla(0, 0%, 53.3%, 0.2);
+	--ytd-searchbox-legacy-border-color: #ccc;
+	--ytd-searchbox-legacy-border-shadow-color: #eee;
+	--ytd-searchbox-legacy-button-color: #f8f8f8;
+	--ytd-searchbox-legacy-button-border-color: #d3d3d3;
+	--ytd-searchbox-legacy-button-focus-color: #e9e9e9;
+	--ytd-searchbox-legacy-button-hover-color: #f0f0f0;
+	--ytd-searchbox-legacy-button-hover-border-color: #c6c6c6;
+	--ytd-searchbox-legacy-button-icon-color: #333;
+	--ytd-moderation-panel-background: hsla(0, 0%, 93.3%, 0.6);
+	--ytd-moderation-panel-hover: hsla(0, 0%, 93.3%, 0.8);
+	--ytd-moderation-panel-comment-text: #111111;
+	--ytd-moderation-panel-comment-metadata-text: hsla(0, 0%, 6.7%, 0.6);
+	--ytd-moderation-icon-color: hsla(0, 0%, 6.7%, 0.6);
+	--ytd-moderation-icon-hover-color: #111111;
+	--ytd-comment-text-color: @gb-dm-fg0;
+	--ytd-comment-metadata-text-color: var(--yt-spec-text-secondary);
+	--ytd-watch-card-secondary-text-color: #888888;
+	--ytd-watch-card-album-header-background: white;
+	--ytd-backstage-metadata-text-color: #888888;
+	--ytd-backstage-image-alert-color: hsla(0, 0%, 6.7%, 0.6);
+	--ytd-backstage-cancel-background-color: white;
+	--ytd-backstage-cancel-color: hsla(0, 0%, 6.7%, 0.4);
+	--ytd-backstage-attachment-background-color: white;
+	--ytd-backstage-creationbox-inactive-color: rgba(0, 0, 0, 0.26);
+	--ytd-backstage-creationbox-text-color: rgba(0, 0, 0, 0.54);
+	--ytd-backstage-creationbox-input-text-color: rgba(0, 0, 0, 0.87);
+	--ytd-backstage-attachment-icon-hover-color: rgba(0, 0, 0, 0.74);
+	--ytd-badge-disabled-color: hsla(0, 0%, 53.3%, 0.4);
+	--ytd-collection-badge-color: hsla(0, 0%, 6.7%, 0.8);
+	--ytd-owner-badge-color: hsla(0, 0%, 6.7%, 0.4);
+	--ytd-simple-badge-color: hsla(0, 0%, 6.7%, 0.6);
+	--ytd-shopping-product-info: hsla(0, 0%, 6.7%, 0.8);
+	--ytd-transcript-cue-hover-background-color: #eeeeee;
+	--ytd-transcript-toolbar-background-color: #eeeeee;
+	--ytd-transcript-toolbar-text: #111111;
+	--ytd-vat-notice-text: hsla(0, 0%, 6.7%, 0.6);
+	--ytd-offer-background-color: hsla(0, 0%, 93.3%, 0.4);
+	--ytd-video-game-watch-card-logo-color: #111111;
+	--ytd-watch-split-pane-sidebar-background-color: #fafafa;
+
+
+    --yt-std-body-300: rgba(0, 0, 0, 0.54);
+	--yt-std-surface-200: #fafafa;
+	--yt-std-surface-300: whitesmoke;
+	--yt-std-surface-400: #ededed;
+	--yt-primary-color: #111111;
+	--yt-primary-text-color: #111111;
+	--yt-secondary-text-color: hsla(0, 0%, 6.7%, 0.8);
+	--yt-tertiary-text-color: hsla(0, 0%, 6.7%, 0.6);
+	--yt-placeholder-text-color: hsla(0, 0%, 6.7%, 0.6);
+	--yt-border-color: #eeeeee;
+	--yt-commentbox-border-inactive: #eeeeee;
+	--yt-commentbox-border-active: hsla(0, 0%, 6.7%, 0.6);
+	--yt-primary-disabled-button-text-color: white;
+	--yt-paper-button-ink-color: #888888;
+	--yt-icon-color: hsla(0, 0%, 6.7%, 0.4);
+	--yt-icon-hover-color: hsla(0, 0%, 6.7%, 0.8);
+	--yt-icon-disabled-color: hsla(0, 0%, 6.7%, 0.6);
+	--yt-icon-active-color: #111111;
+	--yt-placeholder-text: hsla(0, 0%, 6.7%, 0.6);
+	--yt-playlist-background-header: #eeeeee;
+	--yt-playlist-background-item: hsla(0, 0%, 93.3%, 0.6);
+	--yt-playlist-title-text: #111111;
+	--yt-playlist-message-text: hsla(0, 0%, 6.7%, 0.6);
+	--yt-playlist-message-text-hover: #111111;
+	--yt-button-active-color: #111111;
+	--yt-copyright-text: hsla(0, 0%, 6.7%, 0.6);
+	--yt-thumbnail-placeholder-color: #e3e3e3;
+	--yt-featured-channel-title-text-color: rgba(0, 0, 0, 0.54);
+	--yt-formatted-string-deemphasize-color: #888888;
+	--yt-searchbox-text-color: var(--yt-primary-text-color);
+	--yt-simple-menu-header-background: #eeeeee;
+	--yt-menu-hover-backgound-color: #eeeeee;
+	--yt-menu-focus-background-color: hsla(0, 0%, 6.7%, 0.2);
+	--yt-app-background: @gb-dm-bg0;
+	--yt-main-app-background-tmp: white;
+	--yt-guide-background: whitesmoke;
+	--yt-dialog-background: white;
+	--yt-searchbox-background: white;
+	--yt-channel-header-background: #fafafa;
+	--yt-transcript-background: white;
+}
diff --git a/NOSTOW/firefoxExtentions/browseroverrides/manifest.json b/NOSTOW/firefoxExtentions/browseroverrides/manifest.json
index e31593e9..aff1ed87 100644
--- a/NOSTOW/firefoxExtentions/browseroverrides/manifest.json
+++ b/NOSTOW/firefoxExtentions/browseroverrides/manifest.json
@@ -33,9 +33,31 @@
 			"matches": ["*://stackoverflow.com/*","*://*.stackoverflow.com/*"],
 			"css": [ "css/stackoverflow.css" ]
 		},
+		{
+			"matches": ["*://youtube.com/*","*://*.youtube.com/*"],
+			"css": [ "css/youtube.css" ]
+		},
+		{
+			"matches": ["*://protonmail.com/*","*://*.protonmail.com/*"],
+			"css": [ "css/protonmail.css" ]
+		},
 		{
 			"matches": ["*://github.com/*","*://*.github.com/*"],
 			"css": [ "css/github.css" ]
+		},
+
+		{
+			"matches": ["*://*/*"],
+			"exclude_matches": ["*://wiki.archlinux.org/*",
+			"*://*.amazon.com/*","*://*.amazon.co.uk/*",
+			"*://*.duckduckgo.com/*","*://*.duckduckgo.co.uk/*",
+			"*://*.reddit.com/*",
+			"*://*.wikipedia.org/*",
+			"*://stackoverflow.com/*","*://*.stackoverflow.com/*",
+			"*://youtube.com/*","*://*.youtube.com/*",
+			"*://protonmail.com/*","*://*.protonmail.com/*",
+			"*://github.com/*","*://*.github.com/*"],
+			"css": [ "css/global.css" ]
 		}
 	]
 }