[BUG] webgl is null in Firefox on Ubuntu 22.04

Context:

• Playwright Version: 1.22.0
• Operating System: Ubuntu 22.04 LTS
• Node.js version: v18.1.0
• Browser: Firefox

Code Snippet

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

(async () => {
  const browser = await firefox.launch();
  const context = await browser.newContext();
  const page = await context.newPage();

  const webgl = await page.evaluate(() => {
    const canvas = document.createElement("canvas");
    return canvas.getContext("webgl");
  });
  console.log(webgl);
  await browser.close();
})();

Describe the bug

Variable webgl is null (WebGLRenderingContext expected).

On Ubuntu 20.04.4 LTS (with the same version of Node.js and Playwright), the canvas.getContext("webgl") method returns the correct value. I think there is a regression when switching to Ubuntu 22.04.

[ltsuda]

Playwright on Ubuntu 22.04 is not supported yet

https://github.com/microsoft/playwright/issues/13738

[mxschmitt]

Folding into https://github.com/microsoft/playwright/issues/13738 since this should be fixed by a dedicated build.