add styles for Want My RSS.

update linter modules.

.eslintrc.js

@@ -1,6 +1,8 @@
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+/* This Source Code Form is subject to the terms of the Creative Commons
+ * Attribution-NonCommercial-ShareAlike International License, v. 4.0.
+ * If a copy of the CC BY-NC-SA 4.0 was not distributed with this
+ * file, You can obtain one at http://creativecommons.org/licenses/by-nc-sa/4.0/
+ * or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. */
 
 "use strict";
 
@@ -108,5 +110,11 @@ module.exports = {
         curly: "off",
       },
     },
+    {
+      // Rules of Hooks broadly checks for camelCase "use" identifiers, so
+      // enable only for paths actually using React to avoid false positives.
+      extends: ["plugin:react-hooks/recommended"],
+      files: ["*.jsx"],
+    },
   ],
 };

package.json

@@ -1,23 +1,29 @@
 {
+  "name": "uc.css.js",
+  "description": "This package file is for node modules used in uc.css.js and is based on https://searchfox.org/mozilla-central/source/package.json",
+  "repository": {},
+  "license": "CC BY-NC-SA 4.0",
   "devDependencies": {
-    "@babel/core": "7.17.9",
-    "@babel/eslint-parser": "7.17.0",
-    "@babel/eslint-plugin": "7.17.7",
-    "@babel/plugin-syntax-jsx": "7.16.7",
-    "eslint": "^8.22.0",
-    "eslint-config-prettier": "8.3.0",
+    "@babel/core": "7.19.1",
+    "@babel/eslint-parser": "7.19.1",
+    "@babel/eslint-plugin": "7.19.1",
+    "@babel/plugin-syntax-jsx": "7.18.6",
+    "eslint": "8.24.0",
+    "eslint-config-prettier": "8.5.0",
     "eslint-plugin-fetch-options": "0.0.5",
     "eslint-plugin-file-header": "0.0.1",
-    "eslint-plugin-html": "6.2.0",
+    "eslint-plugin-html": "7.1.0",
     "eslint-plugin-import": "2.26.0",
     "eslint-plugin-jest": "23.20.0",
-    "eslint-plugin-jsx-a11y": "6.5.1",
-    "eslint-plugin-mozilla": "^2.12.4",
+    "eslint-plugin-jsdoc": "39.3.6",
+    "eslint-plugin-jsx-a11y": "6.6.1",
+    "eslint-plugin-mozilla": "file:tools/lint/eslint/eslint-plugin-mozilla",
     "eslint-plugin-no-unsanitized": "4.0.1",
     "eslint-plugin-prettier": "3.4.0",
     "eslint-plugin-react": "7.29.4",
-    "eslint-plugin-react-hooks": "4.5.0",
-    "jsdoc": "3.6.10",
-    "prettier": "1.19.1"
+    "eslint-plugin-react-hooks": "4.6.0",
+    "jsdoc": "3.6.11",
+    "prettier": "1.19.1",
+    "yarn": "1.22.19"
   }
 }

resources/in-content/ext-rss.css

@@ -0,0 +1,68 @@
+/* This Source Code Form is subject to the terms of the Creative Commons
+ * Attribution-NonCommercial-ShareAlike International License, v. 4.0.
+ * If a copy of the CC BY-NC-SA 4.0 was not distributed with this
+ * file, You can obtain one at http://creativecommons.org/licenses/by-nc-sa/4.0/
+ * or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA. */
+
+/* Want My RSS extension */
+
+@-moz-document regexp("^moz-extension://.*/popup.html.*") {
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i],
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] body {
+    color-scheme: dark;
+    background-color: var(--uc-arrowpanel-background) !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] body {
+    margin: var(--menupopup-inner-padding-magnitude) !important;
+    max-width: 42em;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] .items {
+    padding: 0 !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] .items__item {
+    border-radius: var(--context-menuitem-border-radius) !important;
+    display: flex !important;
+    flex-flow: row nowrap !important;
+    align-items: center !important;
+    box-sizing: border-box !important;
+    border: none !important;
+    min-height: var(--subviewbutton-height) !important;
+    user-select: none !important;
+    white-space: nowrap;
+    line-height: 1 !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i]
+    .items__item:is(:hover, :focus-visible) {
+    background: var(--uc-arrowpanel-dimmed) !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] .items__item:hover:active {
+    background: var(--uc-arrowpanel-dimmed-further) !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] .items__item-link {
+    cursor: default !important;
+    color: var(--uc-arrowpanel-color) !important;
+    padding: var(--uc-arrowpanel-menuitem-padding-block)
+      var(--uc-arrowpanel-menuitem-padding-inline) !important;
+    flex-grow: 1 !important;
+    flex-shrink: 1 !important;
+    overflow: hidden !important;
+    text-overflow: ellipsis !important;
+  }
+
+  :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] .items__item-link span {
+    opacity: revert !important;
+  }
+
+  @supports -moz-bool-pref("userChrome.css.mac-ui-fonts") {
+    :root[uc-extension-id="{4d567245-e70d-466a-bb2f-390fc7fb25c2}"i] body {
+      font-family: SF Pro Text, SF Arabic, Segoe UI, sans-serif !important;
+      font-kerning: normal !important;
+    }
+  }
+}

tools/lint/eslint/.eslintrc.js

@@ -0,0 +1,27 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+module.exports = {
+  // eslint-plugin-mozilla runs under node, so we need a more restrictive
+  // environment / parser setup here than the rest of mozilla-central.
+  env: {
+    browser: false,
+    node: true,
+  },
+  parser: "espree",
+  parserOptions: {
+    ecmaVersion: 12,
+  },
+
+  rules: {
+    camelcase: ["error", { properties: "never" }],
+    "handle-callback-err": ["error", "er"],
+    "no-shadow": "error",
+    "no-undef-init": "error",
+    "one-var": ["error", "never"],
+    strict: ["error", "global"],
+  },
+};

tools/lint/eslint/eslint-plugin-mozilla/.npmignore

@@ -0,0 +1,8 @@
+.eslintrc.js
+.npmignore
+node_modules
+reporters
+scripts
+tests
+package-lock.json
+update.sh