Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Avatar for Username

Αναζήτηση στην υποστήριξη

Προσοχή στις απάτες! Δεν θα σας ζητήσουμε ποτέ να καλέσετε ή να στείλετε μήνυμα σε κάποιον αριθμό τηλεφώνου ή να μοιραστείτε προσωπικά δεδομένα. Αναφέρετε τυχόν ύποπτη δραστηριότητα μέσω της επιλογής «Αναφορά παραβίασης».

Μάθετε περισσότερα

Αυτό το νήμα αρχειοθετήθηκε. Κάντε νέα ερώτηση αν χρειάζεστε βοήθεια.

I use non fullscreen Firefox window - have to scroll horizontally. Can I spoof screen resolution information?

  • 1 απάντηση
  • 5 έχουν αυτό το πρόβλημα
  • 188 προβολές
  • Τελευταία απάντηση από cor-el
  • Αρχειοθετήθηκε

mlesmana
mlesmana

Screen resolution information captured by Javascript shows the full monitor resolution. Meanwhile I don't maximize my Firefox (use Windows left and right snap). It seems to me that many websites use this info to decide how to render a page. Thus rendering wide pages that require me to scroll horizontally - even on https://support.mozilla.org/en-US/home

I have tried the FireSizer add on but it did not help. FireSizer only changes my browser windows size, websites (e.g. http://www.whatismyscreenresolution.com/) still reported my full screen resolution and not the browser windows size.

I know that I can use the zoom functionality, but that tends to render text too small for comfort.

Additional info: - monitor resolution: 1920x1200

Screen resolution information captured by Javascript shows the full monitor resolution. Meanwhile I don't maximize my Firefox (use Windows left and right snap). It seems to me that many websites use this info to decide how to render a page. Thus rendering wide pages that require me to scroll horizontally - even on https://support.mozilla.org/en-US/home I have tried the FireSizer add on but it did not help. FireSizer only changes my browser windows size, websites (e.g. http://www.whatismyscreenresolution.com/) still reported my full screen resolution and not the browser windows size. I know that I can use the zoom functionality, but that tends to render text too small for comfort. Additional info: - monitor resolution: 1920x1200

Όλες οι απαντήσεις (1)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator

That depends which window and screen properties a website checks via JavaScript.

You can check out on the browserspy website how websites see your windows settings:

Copy and paste this code in the command line in the Web Console (Web Developer > Web Console; Ctrl+Shift+K) and press the Enter key. 

alert("Current Window: "+window.outerWidth+" x "+window.outerHeight+"\nScreen Available: "+screen.availWidth+" x "+screen.availHeight+"\nFull Screen Size: "+screen.width+" x "+screen.height+"\n\nwindow.outerWidth="+window.outerWidth+"\nwindow.outerHeight="+window.outerHeight+"\n\nwindow.innerWidth="+window.innerWidth+"\nwindow.innerHeight="+window.innerHeight);