withExEditor

From the context menu (right click), you can "View source" "View selection" or "Edit text" with your favorite editor.

Premium users can view and search full source code, and see the source code differences between two versions.

manifest.json

{
  "background": {
    "page": "html/background.html",
    "persistent": false
  },
  "browser_action": {
    "default_icon": "img/icon.svg#current",
    "default_title": "__MSG_extensionName__"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "jid1-WiAigu4HIo0Tag@jetpack",
      "strict_min_version": "115.0"
    }
  },
  "commands": {
    "execEditor": {
      "description": "__MSG_commandExecEditor__",
      "suggested_key": {
        "default": "Ctrl+Shift+U"
      }
    },
    "openOptionsPage": {
      "description": "__MSG_commandOpenOptions__",
      "suggested_key": {
        "default": "Alt+Shift+U"
      }
    },
    "editHtml": {
      "description": "__MSG_commandEditHtml__"
    },
    "editMarkdown": {
      "description": "__MSG_commandEditMarkdown__"
    },
    "editPlainText": {
      "description": "__MSG_commandEditPlainText__"
    }
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "js/content.js"
      ],
      "matches": [
        "*://*/*",
        "file:///*"
      ],
      "run_at": "document_idle"
    }
  ],
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "https://github.com/asamuzaK/withExEditor",
  "icons": {
    "16": "img/icon.svg#current",
    "32": "img/icon.svg#current",
    "64": "img/icon.svg"
  },
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "optional_permissions": [
    "notifications"
  ],
  "options_ui": {
    "open_in_tab": true,
    "page": "html/options.html"
  },
  "permissions": [
    "activeTab",
    "menus",
    "nativeMessaging",
    "storage",
    "tabs"
  ],
  "short_name": "__MSG_extensionName__",
  "version": "12.1.1"
}