puppeteer-firefox. { ignoreHTTPSErrors: true } triggers Protocol error (Browser.setIgnoreHTTPSErrors)

[Quo0]

Steps to reproduce

Tell us about your environment:

• puppeteer-firefox version: 0.5.0
• Platform / OS version: Windows 10
• Node.js version: 8.11.3
• jest-environment-puppeteer: 4.3.0

What steps will reproduce the problem?
I have faced this issue while using 'jest-environment-puppeteer' package.
The .setup() method in 'jest-environment-puppeteer/lib/PuppeteerEnvironment.js' is trying to .resetBrowser() first by .disconnect() from the existing Browser and .connect() back to it again.

But this issue also occurs when I tried to reproduced this steps manually.
(This issue doesn't occurs when run with Puppeteer version 1.20.0)
Please check the code below:

const URL = 'https://google.com';
const pptrFirefox = require('puppeteer-firefox');

(async () => {
	const initialConfig = {
		headless: false,
		slowMo: 80,
		ignoreHTTPSErrors: true, // false doesn't trigers Protocol error (Browser.setIgnoreHTTPSErrors)
		args: [
			'--window-size=1280,1000',
			'--no-sandbox',
			'--disable-setuid-sandbox',
			'--ignore-certificate-errors',
			'--ignore-certificate-errors-spki-list',
			'--unsafe-eval',
			'--allow-running-insecure-content',
			'--disable-dev-shm-usage',
			'--user-agent="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36"'
		]
	};
	
	let browser = await pptrFirefox.launch(initialConfig);
	const wsEndpoint = browser.wsEndpoint();

	const newConfig = Object.assign({}, initialConfig, {
		browserURL: undefined,
		browserWSEndpoint: wsEndpoint
	});

	await browser.disconnect();
	browser = await pptrFirefox.connect(newConfig);

	const page = await browser.newPage();
	await page.goto(URL, { waitUntil: 'load' });
	await page.waitFor(5000);
	await browser.close();
})();

What is the expected result?
Puppeteer (Firefox) is running with the { ignoreHTTPSErrors: true } param

What happens instead?
The following error occurs:

`(node:14716) UnhandledPromiseRejectionWarning: Error: Protocol error (Browser.setIgnoreHTTPSErrors): Component returned failure code: 0xc1f30100 (NS_ERROR_FACTORY_EXISTS) [nsIComponentRegistrar.registerFactory] register@chrome://juggler/content/InsecureSweepingOverride.js:60:7
setIgnoreHTTPSErrors@chrome://juggler/content/protocol/BrowserHandler.js:27:7
dispatch@chrome://juggler/content/protocol/Dispatcher.js:182:56
_dispatch@chrome://juggler/content/protocol/Dispatcher.js:102:28
  at Promise (...\tools\puppeteer\node_modules\puppeteer-firefox\lib\Connection.js:74:56)
    at new Promise (<anonymous>)
    at Connection.send (...\tools\puppeteer\node_modules\puppeteer-firefox\lib\Connection.js:73:12)
    at Launcher.connect (...\tools\puppeteer\node_modules\puppeteer-firefox\lib\Launcher.js:222:24)
    at <anonymous>
  -- ASYNC --
    at Puppeteer.<anonymous> (...\tools\puppeteer\node_modules\puppeteer-firefox\lib\helper.js:31:27)
    at ...\tools\puppeteer\direct-connection.js:31:30
    at <anonymous>` 

[Quo0]

Hi, Puppeteer team!
Did you have a chance to take a look at this issue?

[mjzffr]

Thanks for the report @Quo0
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