Bug: Firefox/Safari duplicated icon with v7 in print output

[imagoiq]

Bug description

With v7 CDN version and kits, when we try to print a page with multiple icons, icons are replaced with only one of the icons on the page. Note that the print preview is correct, but the output has the issue.

The test cases is basic:

v7.0.1 - issue occurs: https://codepen.io/imagoiq/pen/GgoaJGY
v6.7.2 - works: https://codepen.io/imagoiq/pen/yyeWNRe

Not sure if it's a Firefox/Safari bug or Font Awesome (or both), but I've posted first here (nothing in bugzilla yet).

Reproducible test case

https://codepen.io/imagoiq/pen/GgoaJGY

Screenshots

PDF printer output:
Font Awesome 7.0.1 - Firefox print bug.pdf
Font Awesome 6.7.2 - Firefox bug print in v7.pdf

Font Awesome version

v7.0.1

Serving

Font Awesome all versions (CDN, Kit, Free and Pro, etc.)

Implementation

CSS

Browser and Operating System

• Issue in Firefox 144.0.2, 145.0b9, Safari 26
• Works in Chromium 136
• Occurs with "real" printer and PDF printer
• Tested with MacOS 26.0.1

Web bug report checklist

• I have included a test case because my odds go way up that the team can fix this when I do
• I have searched for existing issues and to the best of my knowledge this is not a duplicate

[sensibleworld]

@imagoiq Is this only happening in Firefox for you, or are you having issues with other browsers, as well?

[imagoiq]

I've tested as well on Safari 26, and it's the same behavior as in Firefox.

It works in Chromium 136 at least.

[sensibleworld]

Thanks for the update. We'll look into it!