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Trouble with PDF view

I have installed the Mozilla Thunderbird in my MAC Laptop with the software version macOS Tahoe 26.2 and I have installed the last uptated version of Mozilla Thunderbird. I have an issue with the preview of PDF documents. When I open a PDF file attached, and is previewd in the same Thunderbird, the PDF is shown in black and white, instead of with the original colours. What can I do to solve this?

I have installed the Mozilla Thunderbird in my MAC Laptop with the software version macOS Tahoe 26.2 and I have installed the last uptated version of Mozilla Thunderbird. I have an issue with the preview of PDF documents. When I open a PDF file attached, and is previewd in the same Thunderbird, the PDF is shown in black and white, instead of with the original colours. What can I do to solve this?

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