Affected versions

• 81.0a1 (BuildId:20200816214203)

Affected platforms

• Windows 10 64bit
• macOS 10.14

Unaffected Platforms

• Ubuntu 18.04 64bit.

Preconditions

• Ensure that the print.tab_modal.enabled pref is set to true

Steps to reproduce

1. Launch Firefox.
2. Access the following page
3. Open print preview.
4. Print the file (via pdf or actual paper).

Expected result

• The page is successfully displayed & printed.

Actual result

• The page is displayed as cut off in both print preview & in the actual print output (both print to file & print to paper).

Regression Window

• This seems to be reproducible with print.tab_modal.enabled pref set to true (switching it to false successfully displays the page in print to file, print to paper & inside print preview.

Additional Information

• For further information regarding this issue in print preview observe the attached screencast.
• I will be attaching the output for print to file and paper for both Firefox, Chrome and Firefox uit pref off shortly.
• [Suggested Severity] : S2

This feels more like a Core::Print Preview bug to me…

I get the same print output with and without the new print UI. I think this is bug 1414600 (which makes a media query in the site match that shows the sidebar and messes up the design).

(In reply to Emilio Cobos Álvarez (:emilio) from comment #4)

I get the same print output with and without the new print UI. I think this is bug 1414600 (which makes a media query in the site match that shows the sidebar and messes up the design).

Curious. From comment 0 that doesn't seem to be the behaviour Emil is seeing:

(In reply to Emil Ghitta, QA [:emilghitta] from comment #0)

• This seems to be reproducible with print.tab_modal.enabled pref set to true (switching it to false successfully displays the page in print to file, print to paper & inside print preview.

I confirmed that the patch in bug 1414600 fixes this.

I can't repro this:

This seems to be reproducible with print.tab_modal.enabled pref set to true (switching it to false successfully displays the page in print to file, print to paper & inside print preview.