CustomCSS Version History

3 versions

Be careful with old versions!

These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.

Version 1.3 7.8 KiB Works with Thunderbird 91.0 and later

Leave plaintext messages alone. Only add custom CSS style element to HTML messages.

The message body's style attribute is checked to determine whether the message is supposed to be plaintext or not. Plaintext message body have whitespace and fontfamily style values set.

Version 1.1 7.8 KiB Works with Thunderbird 91.0 and later

v1.1: Add icon

Version 1 2.3 KiB Works with Thunderbird 91.0 and later