[BUG] unable to launch firefox on virtual box windows

[arjunattam]

Context:

• Playwright Version: 1.1.1
• Operating System: Windows 10 build 1809 (running on Virtualbox)
• Node version: 12.8
• Browser: Firefox

Code Snippet

const {firefox} = require('playwright');

(async () => {
  const browser = await firefox.launch({ headless: false });
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await browser.close();
})();

Describe the bug

Firefox does not launch, in headless/headful modes.

[arjunattam]

Running firefox directly gives me the missing dll

[pavelfeldman]

Firefox now requires msvcp140.dll and vcruntime140.dll. Let's bundle the same list of dlls that we bundle for WebKit for firefox.

[yury-s]

Launch doctor will now print an instruction to install Visual Studio C Runtime redistributable from Microsoft web site if these libraries are missing. Please reopen if you think we still want to bundle them with Firefox.