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.

Rohkem teavet

Firefox keeps changing printing to automatic duplex

more options

Recently firefox has started printing everything in duplex (double sided). The print dialog that pops up when printing has the duplex box unchecked, so should print single sided.

In about:config print.printer_HP_LaserJet_4050_Series_PCL_5.print_duplex is set to 2. If I change this to 0 I get single sided printing for a random small amount of time, but at some point it reverts to 2 and duplex printing.

This does not occur in other browsers.

Recently firefox has started printing everything in duplex (double sided). The print dialog that pops up when printing has the duplex box unchecked, so should print single sided. In about:config print.printer_HP_LaserJet_4050_Series_PCL_5.print_duplex is set to 2. If I change this to 0 I get single sided printing for a random small amount of time, but at some point it reverts to 2 and duplex printing. This does not occur in other browsers.

All Replies (1)

more options

This sounds like a very annoying bug. Would you mind opening an account on https://bugzilla.mozilla.org/ and reporting the issue there (since that's the website the Firefox developers use to track and fix issues)?