Malfunctioning on [ Default Printing > Save as PDF ]

[Logan-poor]

I found my Firefox keeps printing "Zero Bytes" PDFs for 2 months, I've tried to reinstall it but couldn't help...whether I choose the action as "Open in Firefox"  or "Save File"(Macbook Air M1 with the latest version of macOS and Firefox)

[siffemcon]

Does that also happen in Troubleshoot mode (https://support.mozilla.org/en-US/kb/safe-mode-thunderbird)?If so, you could report it as a possible [bug](https://bugzilla.mozilla.org/enter_bug.cgi/).

[Logan-poor]

Thank you for your kind help!

Just tried to reopen in Troubleshoot mode and printed for several times, the output PDFs were still "Zero Bytes"...

[siffemcon]

OK, go ahead and report it. If you do, please post the link to the bug here.

[Logan-poor]

https://bugzilla.mozilla.org/show_bug.cgi?id=1949200

[siffemcon]

Thanks.