When trying to load the chrome extension in mozilla firefox. I have error:

Reading manifest: Error processing options_page: An unexpected property was found in the WebExtension Reading manifest: Error processing options_page: An unexpected property was found in the WebExtension manifest.

{
  "name": "EXTENSION",
  "options_page": "options.html",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon-34.png"
  },
  "mands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+A"
      }
    }
  },
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
   "https://*/",
   "http://*/"
  ],
  "version": "1.0",
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}

When trying to load the chrome extension in mozilla firefox. I have error:

Reading manifest: Error processing options_page: An unexpected property was found in the WebExtension Reading manifest: Error processing options_page: An unexpected property was found in the WebExtension manifest.

{
  "name": "EXTENSION",
  "options_page": "options.html",
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon-34.png"
  },
  "mands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+A"
      }
    }
  },
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
   "https://*/",
   "http://*/"
  ],
  "version": "1.0",
  "manifest_version": 2,
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'"
}

• javascript
• google-chrome-extension
• firefox-addon
• firefox-addon-webextensions

• I think options_page may be depreciated, try options_ui developer.mozilla/en-US/docs/Mozilla/Add-ons/WebExtensions/… – Tom Berghuis Commented Sep 3, 2019 at 10:00
• @TomBerghuis When I add: "options_ui": "options.html", I have error: Extension is invalid Reading manifest: Error processing options_ui: Expected object instead of "options.html" – Umbro Commented Sep 3, 2019 at 10:03
• 1 "options_ui": { "page": "options.html" } – Tom Berghuis Commented Sep 3, 2019 at 10:07

1 Answer 1

"This manifest key has been deprecated. Use options_ui instead."

 "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },

references:

https://developer.mozilla/en-US/docs/Mozilla/Add-ons/WebExtensions/manifest.json/options_ui

https://developer.chrome./extensions/options