Firefox 69 popup vs new tab WebExtension data https://discourse.mozilla.org/t/openertabid-not-present-in-tab-opened-as-a-popup-getting-opener-tab-of-popup/46844?u=rugkx

newtab-requestDetails.json

{
  "requestId": "7293",
  "url": "https://mastodon.social/users/Mastodon/remote_follow",
  "originUrl": "https://mastodon.social/@Mastodon",
  "method": "GET",
  "type": "main_frame",
  "timeStamp": 1571132453251,
  "frameId": 0,
  "parentFrameId": -1,
  "proxyInfo": null,
  "ip": null,
  "frameAncestors": [],
  "tabId": 67,
  "incognito": false
}

newtab-tabDetails.json

{
  "id": 67,
  "index": 8,
  "windowId": 1,
  "highlighted": false,
  "active": false,
  "attention": false,
  "pinned": false,
  "status": "complete",
  "hidden": false,
  "discarded": false,
  "incognito": false,
  "width": 1920,
  "height": 998,
  "lastAccessed": 1571132452893,
  "audible": false,
  "mutedInfo": {
    "muted": false
  },
  "isArticle": false,
  "isInReaderMode": false,
  "sharingState": {
    "camera": false,
    "microphone": false
  },
  "successorTabId": -1,
  "openerTabId": 15,
  "url": "https://mastodon.social/users/Mastodon/remote_follow",
  "title": "Mastodon",
}

popup-requestDetails.json

  {
  "requestId": "7283",
  "url": "https://mastodon.social/users/Mastodon/remote_follow",
  "originUrl": "https://mastodon.social/@Mastodon",
  "method": "GET",
  "type": "main_frame",
  "timeStamp": 1571132224698,
  "frameId": 0,
  "parentFrameId": -1,
  "proxyInfo": null,
  "ip": null,
  "frameAncestors": [],
  "tabId": 66,
  "incognito": false
}

popup-tabDetails.json

{
  "id": 66,
  "index": 0,
  "windowId": 187,
  "highlighted": true,
  "active": true,
  "attention": false,
  "pinned": false,
  "status": "complete",
  "hidden": false,
  "discarded": false,
  "incognito": false,
  "width": 445,
  "height": 600,
  "lastAccessed": 1571132247750,
  "audible": false,
  "mutedInfo": {
    "muted": false
  },
  "isArticle": false,
  "isInReaderMode": false,
  "sharingState": {
    "camera": false,
    "microphone": false
  },
  "successorTabId": -1,
  "url": "https://mastodon.social/users/Mastodon/remote_follow",
  "title": "Mastodon",
}