Fix printing problems in Firefox | Troubleshooting

Fix printing problems in Firefox

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This article describes how to troubleshoot printing problems in Firefox.

Check Firefox page settings

If a web page prints incorrectly in Firefox:

  1. At the top of the Firefox window, click on the Firefox button, go over to the Print... menu and select Print Preview.Click on the File menu and select Print Preview.Click the menu button new fx menu and select Print. The print preview window will appear.
  2. In the print preview window, make sure Scale is set to Shrink To Fit.
  3. Make sure the Portrait orientation is set.
  4. Click Page Setup.... The Page Setup window will appear.
  5. In the Page Setup window, click the Margins & Header/Footer tab.
  6. In the Margins section, make sure the page margins are set correctly (the default setting is 12.7 mm, or 0.5 in).
  7. Click OK to close the Page Setup window and return to the Print Preview window.
  8. Back in the Print Preview window, click Print.... The Print window will appear.
  9. Make sure the correct printer is shown in the Name field.
  10. Make sure the Print to file setting is not selected.

If you made changes, go ahead and attempt to print the page again. If not, follow the instructions below.

Check Firefox page settings

If a web page prints incorrectly in Firefox:

  1. Click on the File menu and select Print Preview.Click the menu button new fx menu and select Print. The print preview window will appear.
  2. In the print preview window, make sure Scale is set to Shrink To Fit.
  3. Make sure the Portrait orientation is set.
  4. Click Print. The Print window will appear.
  5. Make sure the correct printer is shown in the Name field.
  6. Click the Page Setup tab. Ensure that the page margins are set correctly (the default setting is 12.7 mm, or 0.5 in).

If you made changes, go ahead and attempt to print the page again. If not, follow the instructions below.

Check other browsers and printers

You can see whether your problem is with Firefox, your printer, or the website you're visiting:

  • Check to see whether the page prints correctly in another browser (such as Internet ExplorerSafariEpiphany).

If the page prints incorrectly in another browser also:

  • There might be a problem with your printer: If you have another printer, try printing the page with that printer. If the second printer prints the page properly, update your printer driver from your printer manufacturer's website.
  • There might be a problem with the page. Contact the website administrator.

If the page prints correctly in another browser, follow the instructions below in the following sections.

Reset Firefox printer setting

Several printer issues can be resolved by resetting Firefox's printer settings:

  1. In the Location bar, type about:config and press EnterReturn.

    • The about:config "This might void your warranty!" warning page may appear. Click I'll be careful, I promise! to continue to the about:config page.
  2. In the Search field, type print_printer.
  3. Right-clickHold down the Ctrl key while you click on the print_printer setting and select Reset.
  4. At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

    Click the menu button New Fx Menu and then click ExitQuit Close 29

When you start Firefox again, try printing the page with which you had problems previously.

Note:In old versions of Firefox print.print_printer was the preference name. The old preference name may exist along with the new name. That old preference can be removed via a right-clickcontrol-click and Reset, then restart Firefox, and print something. That preference won't reappear, only the newer should be there.

Reset all Firefox printer settings

If the above steps did not work, you may want to reset all of Firefox's printer settings:

  1. Open your profile folder:

    At the top of the Firefox window, click on the Firefox button, go over to the Help menuOn the menu bar, click on the Help menuAt the top of the Firefox window, click on the Help menu and select Troubleshooting Information. The Troubleshooting Information tab will open.Click the menu button New Fx Menu , click help Help-29 and select Troubleshooting Information. The Troubleshooting Information tab will open.

  2. Under the Application Basics section, click on Show FolderShow in FinderOpen Directory. A window with your profile filesfolder will open.
  3. Note: If you are unable to open or use Firefox, follow the instructions in Finding your profile without opening Firefox.

  4. At the top of the Firefox window, click on the Firefox button and then select ExitAt the top of the Firefox window, click on the File menu and then select ExitOn the menu bar, click on the Firefox menu and select Quit FirefoxAt the top of the Firefox window, click on the File menu and select Quit

    Click the menu button New Fx Menu and then click ExitQuit Close 29

  5. In your profile folder, copy the prefs.js file to another folder to make a backup of it.
  6. Open the original prefs.js file in a text editor (such as WordPadTextEditEmacs).
  7. Remove all lines in prefs.js that start with print_ and save the file.

If something goes wrong when you open Firefox, close it again and overwrite prefs.js with the backup you made.

Change the default font

The Times New Roman font may not be recognized by your printer. Change the default font to a similar font, e.g. Trebuchet MS:

  1. At the top of the Firefox window, click on the Firefox button and then select Options.At the top of the Firefox window, click on the Tools menu and then select Options.On the menu bar, click on the Firefox menu and select Preferences....At the top of the Firefox window, click on the Edit menu and select Preferences.

    Click the menu button New Fx Menu and choose Options.Preferences.

  2. Select the Content panel.
  3. Under Fonts & Colors, select Trebuchet MS for the default font.
  4. Click OK to close the Options window.Click Close to close the Preferences window.Close the Preferences window. Close the about:preferences page. Any changes you've made will automatically be saved.


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