Attach (recommended) or Link to PDF file here: [ICEE-B.2017.8192026.pdf](https://github.com/mozilla/pdf.js/files/6651211/ICEE-B.2017.8192026.pdf)

Configuration:
- Web browser and its version:  Firefox 89.0 (64-bit)
- Operating system and its version: Windows 10 Pro Version 21H1
- PDF.js version: I don't know, sorry
- Is a browser extension: No

Steps to reproduce the problem:
1. Open PDF
2. Figure 1 in page 2 is missing

What is the expected behavior? (add screenshot)
This is how it looks in Edge
![image](https://user-images.githubusercontent.com/40286841/121958287-839b0b80-cd31-11eb-8400-7d9c088d83fa.png)

What went wrong? (add screenshot)
This is how it looks in firefox
![image](https://user-images.githubusercontent.com/40286841/121958359-99a8cc00-cd31-11eb-9d15-b94d5884e03d.png)


Link to a viewer (if hosted on a site other than mozilla.github.io/pdf.js or as Firefox/Chrome extension):

const length = bytes.length;
    for (let i = 3; i < length; i += 4) {
      const alpha = bytes[i];
      if (alpha === 0) {
        bytes[i - 3] = r0;
        bytes[i - 2] = g0;
        bytes[i - 1] = b0;
      } else if (alpha < 255) {
        const alpha_ = 255 - alpha;
        bytes[i - 3] = (bytes[i - 3] * alpha + r0 * alpha_) >> 8;
        bytes[i - 2] = (bytes[i - 2] * alpha + g0 * alpha_) >> 8;
        bytes[i - 1] = (bytes[i - 1] * alpha + b0 * alpha_) >> 8;
      }
    }
  }
  function composeSMaskAlpha(maskData, layerData, transferMap) {