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.

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

Installed Lexmark clean-up page add-on and got "clean_page error: ReferenceError: lex_prefs is not defined" when I tired to use it. Anyone know what this means?

more options

Was REALLY looking forward to the idea of deleting stuff off of a page before printing it with the Lexmark Toolbar but when I tried to use it I got a "clean_page error: ReferenceError: lex_prefs is not defined" error message. Up at the top of that error message box it said (JavaScript Application). Now I'm totally clueless, since there seems to be issues with the JavaScript add-on. I do already have the Java Platform SE 8 U73 add-on installed...but the Java Deployment Toolkit has been permanently blocked. PLEASE shed me some light on the subject. Is there something else I am lacking? THANKS SO MUCH for any help!


By the way, I have Firefox ver. 44 installed and an using Windows7

These are the plug-ins I currently have installed:

  • Adobe PDF Plug-In For Firefox and Netscape 15.10.20056
  • A plugin to detect whether the Adobe Application Manager is installed on this machine.
  • Citrix Online App Detector Plugin
  • Foxit PhantomPDF Plug-In For Firefox and Netscape
  • Foxit Reader Plug-In For Firefox and Netscape
  • GEPlugin
  • Google Update
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 11.73.2 for Mozilla browsers
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • Shockwave Flash 20.0 r0
  • 5.1.41212.0
  • Soda PDF 7
  • 2,5,3,1
  • NPWLPG
Was REALLY looking forward to the idea of deleting stuff off of a page before printing it with the Lexmark Toolbar but when I tried to use it I got a "clean_page error: ReferenceError: lex_prefs is not defined" error message. Up at the top of that error message box it said (JavaScript Application). Now I'm totally clueless, since there seems to be issues with the JavaScript add-on. I do already have the Java Platform SE 8 U73 add-on installed...but the Java Deployment Toolkit has been permanently blocked. PLEASE shed me some light on the subject. Is there something else I am lacking? THANKS SO MUCH for any help! By the way, I have Firefox ver. 44 installed and an using Windows7 These are the plug-ins I currently have installed: * Adobe PDF Plug-In For Firefox and Netscape 15.10.20056 * A plugin to detect whether the Adobe Application Manager is installed on this machine. * Citrix Online App Detector Plugin * Foxit PhantomPDF Plug-In For Firefox and Netscape * Foxit Reader Plug-In For Firefox and Netscape * GEPlugin * Google Update * NPRuntime Script Plug-in Library for Java(TM) Deploy * Next Generation Java Plug-in 11.73.2 for Mozilla browsers * The plugin allows you to have a better experience with Microsoft SharePoint * Shockwave Flash 20.0 r0 * 5.1.41212.0 * Soda PDF 7 * 2,5,3,1 * NPWLPG

Chosen solution

I have never used a toolbar like that. Try using Print Edit. https://addons.mozilla.org/en-US/firefox/addon/print-edit/

Read this answer in context 👍 1

All Replies (3)

more options

Chosen Solution

I have never used a toolbar like that. Try using Print Edit. https://addons.mozilla.org/en-US/firefox/addon/print-edit/

more options

THANKS Ed! I tried the add-on that you suggested and it looks way superior to the one by Lexmart! So that's awesome and you just made my day.  :) Karen

Modified by computerkindergartenerLOL

more options

THANKS Ed! I tried the add-on that you suggested and it looks way superior to the one by Lexmart! So that's awesome and you just made my day.  :) Karen