diff --git a/users/profiles/firefox/default.nix b/users/profiles/firefox/default.nix
new file mode 100644
index 00000000..e8d8f668
--- /dev/null
+++ b/users/profiles/firefox/default.nix
@@ -0,0 +1,25 @@
+{pkgs, ... }:
+
+{
+  user.packages = with pkgs; [
+        firefox-bin
+        (makeDesktopItem {
+          name = "firefox-private";
+          desktopName = "Firefox (Private)";
+          genericName = "Open a private Firefox window";
+          icon = "firefox";
+          exec = "${firefox-bin}/bin/firefox --private-window";
+          categories = "Network";
+        })
+      ];
+  home.file = let cfgPath = ".mozilla/firefox"; in {
+    "${cfgPath}/profiles.ini".text = ''
+      [Profile0]
+      Name=default
+      IsRelative=1
+      Path=${cfg.profileName}.default
+      Default=1
+      [General]
+      StartWithLastProfile=1
+      Version=2
+    '';
diff --git a/users/profiles/firefox/userChrome.css b/users/profiles/firefox/userChrome.css
new file mode 100644
index 00000000..57997e6f
--- /dev/null
+++ b/users/profiles/firefox/userChrome.css
@@ -0,0 +1,276 @@
+/* @namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); */
+
+@-moz-document url(chrome://browser/content/browser.xul),
+               url(chrome://browser/content/browser.xhtml)
+{
+  /*** TREE STYLE TABS ***/
+  /* Hide main tabs toolbar */
+  #TabsToolbar {
+  	visibility: collapse !important;
+  }
+  /* Sidebar min and max width removal */
+	:root {
+		/* expanded width of the sidebar. 
+    used for userChrome-static, and hover */
+    --sidebar-width: 250px;
+    /* initial width of the sidebar. 
+    advised not to change since tst css relies on this value*/
+    --sidebar-collapsed-width: 60px;
+	}
+
+  #sidebar-box {
+      z-index: 1000 !important;
+      position: relative !important;
+      min-width: var(--sidebar-collapsed-width) !important;
+      max-width: var(--sidebar-collapsed-width) !important;
+  }
+  
+  #sidebar-header,
+  #sidebar-splitter {
+      display: none !important;
+  }
+  
+  /* inner width = expanded width & move inner to only show initial-width long section */
+  #sidebar-box #sidebar {
+      position: absolute !important;
+      min-width: var(--sidebar-width) !important;
+      max-width: var(--sidebar-width) !important;
+      width: var(--sidebar-width) !important;
+      transform: translateX(calc(var(--sidebar-collapsed-width) - var(--sidebar-width)));
+      transition: all var(--transition-time) var(--ease-out);
+  }
+  
+  /* move inner to show entire sidebar */
+  #sidebar-box #sidebar:hover {
+      transform: translateX(0) !important;
+      box-shadow: 2px 0 33px -3px var(--sidebar-shadow-color);
+  }
+  
+  #sidebar-box[sidebarcommand="viewBookmarksSidebar"] #sidebar {
+      transform: translateX(0) !important;
+      box-shadow: 2px 0 33px -3px var(--sidebar-shadow-color);
+  }
+  /* hide sidebar header for tree style tabs sidebar */
+  #sidebar-box #sidebar-header {
+      display: none;
+  }
+  
+  #sidebar {
+      border-right: solid var(--dividers) var(--sidebar-shadow-color) !important;
+  }
+  
+  toolbar {
+      border: none !important;
+  }
+
+	#tabbrowser-arrowscrollbox {
+    margin: 7px 14px 7px 14px;
+  }
+  
+  .tabbrowser-tab::after {
+      border: none !important;
+  }
+  
+  .tab-background .tab-line,
+  .tab-background .tab-bottom-line {
+      display: none;
+  }
+  
+  tab[selected="true"] > .tab-stack > .tab-background {
+      background: var(--tl-tab-background-gradient, var(--arrowpanel-dimmed-further)) !important;
+  }
+  
+  tab:not([selected="true"]) > .tab-stack:hover > .tab-background {
+      background: var(--arrowpanel-background) !important;
+  }
+  
+  .tab-stack {
+      border-radius: 7px;
+      margin-right: 5px;
+      overflow: hidden;
+  }
+  
+  .tab-stack .tab-icon-image,
+  .tab-stack .tab-label-container {
+      transform: translateX(0px);
+      transition: all var(--tl-animation-duration) var(--ease-out) !important;
+  }
+  
+  .tab-stack .tab-icon-image {
+      transition-duration: calc(var(--tl-animation-duration) * 2) !important;
+  }
+  
+  tab:not([pinned="true"]) .tab-stack:hover .tab-icon-image {
+      transform: translateX(-25px) !important;
+  }
+  
+  .tab-stack:hover .tab-label-container {
+      transform: translateX(-23px) !important;
+  }
+  
+  /* containers */
+  tab:not([selected="true"]).identity-color-blue > .tab-stack,
+  tab:not([selected="true"]).identity-color-orange > .tab-stack,
+  tab:not([selected="true"]).identity-color-green > .tab-stack,
+  tab:not([selected="true"]).identity-color-pink > .tab-stack{
+      border-radius: 0 0 7px 7px !important;
+  }
+  
+  tab[selected="true"].identity-color-blue > .tab-stack .tab-label-container,
+  tab[selected="true"].identity-color-orange > .tab-stack .tab-label-container,
+  tab[selected="true"].identity-color-green > .tab-stack .tab-label-container,
+  tab[selected="true"].identity-color-pink > .tab-stack .tab-label-container{
+     color: #000 !important;
+  }
+  
+  /* blue */
+  tab[selected="true"].identity-color-blue > .tab-stack > .tab-background{
+     background: linear-gradient(to right, #3182CE , #0BC5EA) !important;
+  }
+  
+  tab:not([selected="true"]).identity-color-blue > .tab-stack > .tab-background{
+      border-top: solid 4px #63B3ED !important;
+  }
+  
+  /* orange */
+  tab[selected="true"].identity-color-orange > .tab-stack > .tab-background{
+     background: linear-gradient(to right, #DD6B20 , #F56565) !important;
+  }
+  
+  tab:not([selected="true"]).identity-color-orange > .tab-stack > .tab-background{
+      border-top: solid 4px #F6AD55 !important;
+  }
+  
+  /* green */
+  tab[selected="true"].identity-color-green > .tab-stack > .tab-background{
+     background: linear-gradient(to right, #38A169 , #38B2AC) !important;
+  }
+  
+  tab:not([selected="true"]).identity-color-green > .tab-stack > .tab-background{
+      border-top: solid 4px #68D391 !important;
+  }
+  
+  /* pink */
+  tab[selected="true"].identity-color-pink > .tab-stack > .tab-background{
+     background: linear-gradient(to right, #D53F8C , #9F7AEA) !important;
+  }
+  
+  tab:not([selected="true"]).identity-color-pink > .tab-stack > .tab-background{
+      border-top: solid 4px #F687B3 !important;
+  }
+  
+  
+  .tab-stack .tab-close-button {
+      border-radius: 50%;
+      margin-left: -20px !important;
+      background: var(--lwt-text-color);
+      fill: var(--lwt-accent-color) !important;
+      transform: translateX(30px) !important;
+      transition: all var(--tl-animation-duration) var(--ease-out) !important;
+  }
+  
+  .tab-stack:hover .tab-close-button {
+      transform: translateX(0px) !important;
+  }
+
+#tabbrowser-tabs[closebuttons="activetab"] > #tabbrowser-arrowscrollbox > 
+.tabbrowser-tab > .tab-stack > .tab-content > .tab-close-button:not([selected="true"]){
+    display: block !important;
+}
+  
+  /* hide tabs */
+  .tabbrowser-tab {
+      display: none;
+  }
+  
+  #tabs-newtab-button {
+      display: none;
+  }
+  
+  .titlebar-spacer {
+      display: none !important;
+  }
+  
+
+  /*** TAB BAR ***/
+  /* Ensure tab doesn't show through auto-completion popup */
+  .tabbrowser-tab { z-index: 0 !important; }
+  /* Ensure tab "spacers" don't show through the completion window */
+  #tabbrowser-arrowscrollbox > spacer { z-index: -1 !important; }
+  #mainPopupSet { z-index: 9999 !important; }
+
+  /* Hide tabbar if only one tab */
+  @import url(./css/tabs-hide-if-only-one.css);
+
+
+  /* Remove the colored overline on the focused tab */
+  .tabbrowser-tab .tab-line { background: none !important; }
+
+  /* Replace favicon on tabs with close button on mouse hover */
+  .tabbrowser-tab:not(:hover) .tab-close-button,
+  .tabbrowser-tab:not([pinned]):hover .tab-icon-image { display: none !important; }
+  .tabbrowser-tab:not([pinned]):hover .tab-close-button { display:block !important; }
+
+  .tabbrowser-tab:hover .tab-throbber,
+  .tabbrowser-tab:hover .tab-icon-image,
+  .tabbrowser-tab:hover .tab-sharing-icon-overlay,
+  .tabbrowser-tab:hover .tab-icon-overlay,
+  .tabbrowser-tab:hover .tab-label-container,
+  .tabbrowser-tab:hover .tab-icon-sound {
+    -moz-box-ordinal-group: 2 !important;
+  }
+
+  .tabbrowser-tab .tab-close-button {
+    margin-left: -2px !important;
+    margin-right: 4px !important;
+  }
+
+  .tab-close-button:hover {
+    fill-opacity: 0 !important;
+  }
+
+  .tabbrowser-tab::after,
+  .tabbrowser-tab::before {
+    border-left: none !important;
+    border-right: none !important;
+  }
+
+  .scrollbutton-up[orient="horizontal"]~spacer { border-width: 0px; opacity: 0 }
+
+
+  /*** NAV BAR ***/
+  /* Hide urlbar */
+  #nav-bar {
+    position: relative !important;
+    z-index: 2 !important;
+    height: 2px !important;
+    min-height: 2px !important;
+    margin-bottom: -2px !important;
+    opacity: 0 !important;
+    border: none !important;
+  }
+
+  /* But unfocus it when we invoke it with ctrl+L */
+  #nav-bar:focus-within {
+    height: auto !important;
+    margin-bottom: 0px !important;
+    opacity: 1 !important;
+    overflow: show !important;
+  }
+
+  #urlbar-container {
+    min-height: 0 !important;
+  }
+
+  #urlbar {
+    top: 0 !important;
+  }
+
+  #urlbar-input-container {
+    height: 28px !important;
+  }
+
+  /*** Load local overrides ***/
+  @import url(./userChrome.local.css);
+}
+