See this - https://support.mozilla.org/en-US/kb/fix-printing-problems-firefox#w_reset-firefox-printer-setting

I tried all three suggested solutions in sequence. I am still getting blank pages when I print to my hard copy printer and Adobe Acrobat.

If you cannot see any content on pages you printed or in print preview, the cause might be margins which are set too high.

1. In order to check the margins, we need to go to File > Page Setup.
2. Once this is done, switch to the Margins & Header/Footer tab.
3. Check what's set there under Margins.

The following are the default values for Margins:

Right: 12.7

Top: 12.7

Left: 12.7

Bottom: 12.7

Check these values accordingly and change them if necessary.

Default margins are set to the correct value. I should mention that I am a scientist and print pages daily from the same web-sites such as PubMed for work purposes, and also from my bank web-site for personal purposes. I only started having a problem last week after Firefox 28.0 was installed. I can't print from any web-pages at all now.

Hello,

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information.
Note: This will cause you to lose any Extensions and some Preferences.

• Open websites will not be saved in Firefox versions lower than 25.

To Reset Firefox do the following:

1. Go to Firefox > Help > Troubleshooting Information.
2. Click the "Reset Firefox" button.
3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Thank you.