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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox 73.0: javascript function window.open()

  • 3 replies
  • 1 has this problem
  • 1 view
  • Last reply by Pastis

Pastis
Pastis
more options

Height and width does not work as before. Open smaller window...

Example:

function PopUpWin(source,name,width,height) { 

 window.open(source, name,"location=0,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height+"");

}

Height and width does not work as before. Open smaller window... Example: function PopUpWin(source,name,width,height) { window.open(source, name,"location=0,toolbar=no,menubar=no,scrollbars=yes,resizable=yes,width="+width+",height="+height+""); }

Chosen solution

I disable the plugin (had 90% zoom as default) and set the new Default Zoom setting to 90% in the Options/Preferences page and it solved my problems! Thank you!

Read this answer in context 👍 0

All Replies (3)

Pastis
Pastis Question owner
more options

The problem is the plugin "Default zoom" for Firefox...

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 25 Contributor
more options

Hi Pastis, the height and width set in window.open() are adjusted according to your global zoom level. Firefox 73 introduced a Default Zoom setting on the Options/Preferences page, which could involve internal code changes that affect this issue.

Do you recall any changes that you or an add-on might have made to the Default Zoom setting?

For experimenting:

I have a test page that generates a nominal 800x600 popup window (third link):

https://www.jeffersonscher.com/res/popit.html

What Firefox considers Default Zoom of 100% actually shows me the Windows default of 125%, so the popup window is enlarged proportionately. If I set the Default Zoom in Firefox to 80% to cancel out the Windows default of 125%, then the popup is sized as requested, plus borders and toolbars.

Pastis
Pastis Question owner
more options

Chosen Solution

I disable the plugin (had 90% zoom as default) and set the new Default Zoom setting to 90% in the Options/Preferences page and it solved my problems! Thank you!