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

Headers and footers are in inches we use mm how do I change this

  • 1 பதிலளி
  • 1 இந்த பிரச்சனை உள்ளது
  • 1 view
  • Last reply by Wesley Branton

When printing invoices from ebay I use pre printed paper and with Win 10 and Firefox v 66.05 64bit When changing the header/footer to align the print with the paper it is measured in INCHES - In the UK and EU/Canada/Australia etc we use the metric system so how do we change this to mm.

When printing invoices from ebay I use pre printed paper and with Win 10 and Firefox v 66.05 64bit When changing the header/footer to align the print with the paper it is measured in INCHES - In the UK and EU/Canada/Australia etc we use the metric system so how do we change this to mm.

All Replies (1)

You can change the measurement units by doing the following:

  1. Type about:config in the Firefox address bar
  2. Bypass the security warning (yes, we will be careful)
  3. Search for print_paper_size_unit

Now you should see a list of each printer that you have installed on your system. To change the unit of measurement that is used, change the values from 0 (inches) to 1 (metric).

You will need to restart Firefox for the changes to be applied fully.

Hope this helps.