In Firefox the print dialog box do not open.

I have the same problem.
With Google Chrome it works.

This firefox issue has been resolved in an upcoming release. You can download the Release Candidate from GitHub here:
https://github.com/baden03/print-o-matic/tree/2.0-redo

Let us know if this resolves the issue, or if you have any other feedback.

The Release Candidate from GitHub has solved the problem in Firefox.
Printer dialog appears now again in Firefox.

Thanks.
Topic resolved!

This release candidate fixed the problem for me also. However, when printing in FireFox, a new tab is not opened and the preview does not appear, only the Windows 10 print dialog window appears. Printing from Chrome does open a new tab and a preview windows. Also, there is little/no formatting of the print when printed from either FireFox or Chrome, only raw output. Thanks.

PapaDawg, same thing happened when I installed the release candidate, no preview in chrome.

Printing from Chrome does open a new tab and a preview windows.

printing doe not open a new tab in the RC. This is by design, as it uses a more streamlined method of printing.

Also, there is little/no formatting of the print when printed from either FireFox or Chrome, only raw output. Thanks.

Clear any cache. The exact same formatting of the display page will be use on the print, unless @media print CSS has been included in the theme.

same thing happened when I installed the release candidate, no preview in chrome.

This is not the same thing. If by print-preview, you are referring to opening a new tab, then yes… this is by design. If by print-preview, you are referring to the preview in the chrome print dialogue box, we have not been able to recreate this problem.

As the main issue in this thread is resolved. we recommend opening your own thread for further assistance.