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

How do I disable the command + scroll zooming in the firefox PDF viewer in Mac OSX?

  • 1 reply
  • 1 has this problem
  • 2 views
  • Last reply by cor-el

more options

I am running Firefox 43.0.4 on Mac OSX 10.11.2. When I am scrolling and then go to switch tabs it zooms the PDF I am viewing because of the command + scroll zoom feature. I do not need this feature therefore would like to turn it off. I did the about:config and changed mousewheel.with_meta.action to 0 but this did not fix the problem. Thanks!

I am running Firefox 43.0.4 on Mac OSX 10.11.2. When I am scrolling and then go to switch tabs it zooms the PDF I am viewing because of the command + scroll zoom feature. I do not need this feature therefore would like to turn it off. I did the about:config and changed mousewheel.with_meta.action to 0 but this did not fix the problem. Thanks!

All Replies (1)

more options

You can set mousewheel.with*.action prefs like the mousewheel.withcontrol.action pref (on Mac mousewheel.with_meta.action) prefs to 1 on the about:config page to avoid zooming if the Ctrl/Command key is pressed.

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.