diff --git a/.mozilla/firefox/profile/chrome/userChrome/sidebar.css b/.mozilla/firefox/profile/chrome/userChrome/sidebar.css
deleted file mode 100644
index 02c1445..0000000
--- a/.mozilla/firefox/profile/chrome/userChrome/sidebar.css
+++ /dev/null
@@ -1,44 +0,0 @@
-/* {{{ 标签侧边栏 (使用扩展Sidebery) */
-/* https://addons.mozilla.org/zh-CN/firefox/addon/sidebery */
-
-/* Sidebery侧边栏在Hover时自动弹出 */
-#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"] {
-  min-width: 34px !important;
-  max-width: 34px !important;
-  position: relative !important;
-  z-index: 1000;
-}
-#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"]
-  #sidebar:hover {
-  min-width: 200px !important;
-  max-width: 200px !important;
-  box-shadow: 0 0 10px black;
-}
-#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"]
-  #sidebar {
-  transition: all 200ms ease-in-out;
-  clip-path: inset(0px -10px);
-}
-
-/* 隐藏Sidebery侧边栏的头部 */
-#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"]
-  > #sidebar-header {
-  display: none;
-}
-
-/* 隐藏Sidebery侧边栏右侧的用于调整大小的分割条 */
-#sidebar-box[sidebarcommand="_3c078156-979c-498b-8990-85f7987dd929_-sidebar-action"]
-  + #sidebar-splitter {
-  display: none;
-}
-/* }}} */
-
-/* {{{ Bitwarden */
-/* 隐藏Bitwarden侧边栏的头部 */
-#sidebar-box[sidebarcommand="_446900e4-71c2-419f-a6a7-df9c091e268b_-sidebar-action"]
-  > #sidebar-header {
-  display: none;
-}
-/* }}} */
-
-/* vim:fdm=marker
diff --git a/.mozilla/firefox/profile/chrome/userContent.css b/.mozilla/firefox/profile/chrome/userContent.css
deleted file mode 100644
index f1b702b..0000000
--- a/.mozilla/firefox/profile/chrome/userContent.css
+++ /dev/null
@@ -1,34 +0,0 @@
-/* Sidebery */
-@-moz-document regexp("^moz-extension://[a-zA-Z0-9-]+/sidebar/sidebar\.html.*")
-{
-  /* 侧边栏折叠时不显示树状缩进 */
-  body:not(:hover) .Tab[data-lvl] {
-      padding-left: inherit !important;
-  }
-
-  /* 修复在侧边栏开始弹出时，关闭按钮与网站图标重叠在一起的问题 */
-  #root .Tab:hover .close {
-    transition: opacity 200ms ease-in;
-  }
-
-  /* 固定标签页不需要显示关闭按钮 */
-  #root .PinnedTabsBar .close {
-    display: none;
-  }
-  #root .PinnedTabsBar .t-box {
-    mask: unset !important;
-  }
-
-  /* 声音播放按钮放在网站图标左上角 */
-  #root .panel[data-pos="center"] .audio {
-    left: 0 !important;
-    width: var(--tabs-pinned-audio-btn-width) !important;
-    height: var(--tabs-pinned-audio-btn-height) !important;
-    background-color: var(--frame-bg);
-    border: 1px solid rgba(0, 0, 0, 0.2);
-    border-radius: 3px;
-  }
-  #root .Tab .t-box {
-    --audio-btn-offset: 0 !important;
-  }
-}