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I'm using Mozilla Thunderbird (, and regularly receive HTML email from people who use HTML background colors. I find them annoying and would like to override the background colors without resorting to viewing all email as plain text. Can I override styles/html in incoming email? I've looked at the available settings under the View menu as well as Tools->Options but they don't seem to be fine-grained enough for my purposes.

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up vote 2 down vote accepted

You should be able to achieve this by creating a userContent.css file in your Thunderbird profile directory.

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Perfect, thank you. – Lyle Sep 9 '09 at 13:13

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