puppeteer-firefox: ERROR: failed to call method 'Browser.deleteCookies'

[brandon-bethke-timu]

I receive the following error when I try to run the following example using puppeteer-firefox version 0.5.0:

const pptrFirefox = require('puppeteer-firefox');
(async () => {
  const browser = await pptrFirefox.launch({headless: false});
  const page = await browser.newPage();
  await page.goto('https://www.google.com');
  await page.setCookie({name: 'mycookie', value: 'myvalue'});
})();

$ node sample.js 
(node:92226) UnhandledPromiseRejectionWarning: Error: Protocol error (Browser.deleteCookies): ERROR: failed to call method 'Browser.deleteCookies' with parameters {
  "browserContextId": null,
  "cookies": [
    {
      "url": "https://www.google.com/",
      "name": "mycookie"
    }
  ]
}
Expected "<root>.browserContextId" to be |string|; found |object| `null` instead. _dispatch@chrome://juggler/content/protocol/Dispatcher.js:100:15

    at node_modules/puppeteer-firefox/lib/Connection.js:74:56
    at new Promise (<anonymous>)
    at Connection.send (node_modules/puppeteer-firefox/lib/Connection.js:73:12)
    at Page.deleteCookie (node_modules/puppeteer-firefox/lib/Page.js:115:22)
    at Page.<anonymous> (node_modules/puppeteer-firefox/lib/helper.js:32:23)
    at Page.setCookie (node_modules/puppeteer-firefox/lib/Page.js:135:16)
    at Page.<anonymous> (node_modules/puppeteer-firefox/lib/helper.js:32:23)
    at sample.js:6:14

[aslushnikov]

@brandon-bethke-neudesic thank you for taking time to file this!

[mikeecb]

I'm seeing the exact same issue for Browser.getCookies for puppeteer-firefox version 0.5.0.

const pptrFirefox = require('puppeteer-firefox');
(async () => {
  const browser = await pptrFirefox.launch({headless: false});
  const page = await browser.newPage();
  await page.goto('https://www.google.com');
  const cookies = await page.cookies(page.url());
})();

node:36006) UnhandledPromiseRejectionWarning: Error: Protocol error (Browser.getCookies): ERROR: failed to call method 'Browser.getCookies' with parameters {
  "browserContextId": null,
  "urls": [
    "https://www.google.com/"
  ]
}
Expected "<root>.browserContextId" to be |string|; found |object| `null` instead. _dispatch@chrome://juggler/content/protocol/Dispatcher.js:100:15

    at Promise (/Users/mcypher/plaid/pdaas/node_modules/puppeteer-firefox/lib/Connection.js:74:56)
    at new Promise (<anonymous>)
    at Connection.send (/Users/mcypher/plaid/pdaas/node_modules/puppeteer-firefox/lib/Connection.js:73:12)
    at Page.cookies (/Users/mcypher/plaid/pdaas/node_modules/puppeteer-firefox/lib/Page.js:90:30)
    at Page.<anonymous> (/Users/mcypher/plaid/pdaas/node_modules/puppeteer-firefox/lib/helper.js:32:23)
    at /Users/mcypher/plaid/pdaas/sample.js:6:30

[aslushnikov]

@mikeecb thanks! We're working on the fix.

The workaround would be to use incognito browsing contexts for now - cookies should work just fine for these.

[james-berry]

still getting ERROR: failed to call method 'Browser.getCookies' using:

const browser = await puppeteer.launch({
    headless: false,
    args: ['--start-fullscreen', '--incognito'],
    devtools: true,
  });

[nayanamana]

Have anyone found workarounds for this issue?

[whimboo]

@mathiasbynens I assume we can close this issue given that it is about Juggler?

[mjzffr]

I'm closing this issue since the experimental puppeteer-firefox package is no longer maintained. A replacement will be available
later this year. You can learn more about Mozilla's work on this at https://wiki.mozilla.org/Remote

See also #5137

[limonte]

FWIW, this issue has been fixed in #4850 and released in puppeteer-firefox@0.5.1 which was published 4 days ago.