Websites are rendering at 665px wide on a 1024x768 resolution
I was looking into a complaint about site rendering at 1024x768 screen resolution and upon inspecting the web page with the window maximized and zoom set to 100%, the HTML and BODY tags are showing to only be 665px wide. They should be rendering closer to 1000 pixels. I have confirmed that nothing is checked off in the Compatibility tab, per this article: https://support.mozilla.org/en-US/kb/Screen%20resolution%20changes%20when%20starting%20Firefox
I replicated on Windows 7 using Firefox 32.0.3.
Opaite Mbohovái (3)
You may have zoomed the page(s) by accident. Reset the page zoom on pages that cause problems.
- View > Zoom > Reset (Ctrl/Command+0 (zero))
As I stated, zoom was set to 0. That was my initial assumption and I checked it several times.
You can rename (or delete) the content-prefs.sqlite file to content-prefs.sqlite.old in the Firefox profile folder to reset the page zoom for all websites.
What does the Box Model tab in the Web Console (Firefox/Tools > Web Developer) show?
You can check out on the browserspy website how websites see you: