We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

HP OfficeJet Pro 8720 will not print full duplex on Mac w/ Fire Fox Quantum

  • 2 replies
  • 2 have this problem
  • 3 views
  • Last reply by scottjg24

scottjg24
scottjg24
more options

I called HP Tech Support to resolve an issue with Firefox Quantum printing full duplex using HP OfficeJet Pro 8720. The glitch with Firefox and only Firefox is that it selects "Index Card Letter 8.5x11in. HP Tech Support stated that the glitch with Firefox is that the printer setting should be "US Letter." I do not have this problem using Google Chrome of Apple Safari. Please get this corrected as soon as possible.

I called HP Tech Support to resolve an issue with Firefox Quantum printing full duplex using HP OfficeJet Pro 8720. The glitch with Firefox and only Firefox is that it selects "Index Card Letter 8.5x11in. HP Tech Support stated that the glitch with Firefox is that the printer setting should be "US Letter." I do not have this problem using Google Chrome of Apple Safari. Please get this corrected as soon as possible.

All Replies (2)

Shadow110
Shadow110
more options

Try : https://support.mozilla.org/en-US/kb/fix-printing-problems-firefox http://kb.mozillazine.org/Problems_printing_web_pages

If does not work : uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Note: your Firefox Profile is saved. But you should make a back up before you do : https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles

Reinstall with Current Release Firefox 57.0.2 with a Full Version Installer https://www.mozilla.org/firefox/all/

Please let us know if this solved your issue or if need further assistance.

scottjg24
scottjg24 Question owner
more options

Your solution is for Windows-operated PCs but not for Macs.