yikes. Just printed out a web page normally. Then printed out another email properly. It's just the one email message! I've no idea why that would happen. So...I'm guessing this should be withdrawn. The email message that didn't print was in Yahoo email but then so was the one that printed correctly. Sorry

Might be the message itself somehow. Please flag your last post as Solved Problem so others will know.

By default, Firefox will "shrink to fit" the text of the page. Possibly the message contains a long "unbreakable" line or wide image that forced the browser to resize the page way down.

Normally, when you launch a popup with a "print-optimized" message, the site strips off the toolbar and menu bar, so you can't use print preview. You can add those back for cases where printing is questionable, but unless you manually break the unbreakable line, it probably wouldn't help.

If you did want to make that change, here's how:

(1) In a new tab, type or paste about:config in the address bar and press Enter/Return. Click the button promising to be careful.

(2) In the search box above the list, type or paste feat and pause while the list is filtered

(3) Double-click the dom.disable_window_open_feature.menubar preference to switch the value from false to true -- this disables sites from launching popup windows that hide the menu bar

(4) Double-click the dom.disable_window_open_feature.toolbar preference to switch the value from false to true -- this disables sites from launching popup windows that hide the main toolbar

If you want to test the results, you can use the third link on this page: https://jeffersonscher.com/res/popit.html (after launching the popup, tap the Alt key to activate the menu bar)

Thank you