manifest.json

{

 "name": "Download with FDM (Free Download Manager)",
 "description": "Help you interrupts the built-in download manager to direct links to FDM",
 "version": "1.1.0",
 "manifest_version": 2,
 "permissions": [
   "storage",
   "tabs",
   "nativeMessaging",
   "notifications",
   "downloads",
   "contextMenus",
   "https://api.github.com/repos/belaviyo/native-client/releases/latest"
 ],
 "background": {
   "persistent": false,
   "scripts": [
     "config.js",
     "termlib_parser.js",
     "common.js"
   ]
 },
 "browser_action": {
   "default_icon": {
     "16": "data/icons/disabled/16.png",
     "32": "data/icons/disabled/32.png",
     "64": "data/icons/disabled/64.png"
   }
 },
 "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png"
 },
 "options_ui": {
   "page": "data/options/index.html",
   "chrome_style": true
 }

}

What I don't like is getting that 'install' instruction that does not seem to work. I sent a message to FDM support but they never answered.

Hi FredMcD, the "nativeMessaging" permission is what allows the extension to interact with another program on your system. I don't know what additional functionality that would add to the extension, but if the nagging becomes too intrusive, hopefully they will provide a way to disable it.

After I removed that file, the problem has not returned. Hopefully, it will stay gone.

I wonder if it has something to do with my using FF v54 ? I will not update because I refuse to do without my add-ons.