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Firefox opens to the width of the leftmost monitor (on Gnome)

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I am running Firefox 132.0.2 on Pop_OS, using Gnome. I have a dual monitor setup, with my leftmost monitor being a 1080p set as portrait, and my main being a 4K set as landscape.

Every time I open Firefox, the window is exactly 1080 pixels large, no matter what I do. I can of course resize it, but it's frustrating having to do that every time.

If I tell Gnome that my secondary monitor is on the RIGHT side of my primary, everything works perfectly: Firefox stays the size it is when I close it.

It seems that Firefox uses my leftmost monitor's size to determine the maximum windows width, and even overwrites my xulsettings.json every time I close it.

I tried different builds, and even different forks suck as librewolf: no difference. I can´t of course change the position of how my monitors are placed on my desk.

Any ideas?

I am running Firefox 132.0.2 on Pop_OS, using Gnome. I have a dual monitor setup, with my leftmost monitor being a 1080p set as portrait, and my main being a 4K set as landscape. Every time I open Firefox, the window is exactly 1080 pixels large, no matter what I do. I can of course resize it, but it's frustrating having to do that every time. If I tell Gnome that my secondary monitor is on the RIGHT side of my primary, everything works perfectly: Firefox stays the size it is when I close it. It seems that Firefox uses my leftmost monitor's size to determine the maximum windows width, and even overwrites my xulsettings.json every time I close it. I tried different builds, and even different forks suck as librewolf: no difference. I can´t of course change the position of how my monitors are placed on my desk. Any ideas?

All Replies (4)

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Gnome... see what happens on a different desktop, also another user account. Try your OS or another via a live usb stick to see if you have the same issues. All is well for me. X11 or Wayland?



Operating System: openSUSE Tumbleweed 20241112 KDE Plasma Version: 6.2.3 KDE Frameworks Version: 6.8.0 Qt Version: 6.8.0 Kernel Version: 6.11.7-1-default (64-bit) Graphics Platform: X11 Processors: 16 × AMD Ryzen 7 5825U with Radeon Graphics Memory: 62.1 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: HP Product Name: HP ProBook 455 15.6 inch G9 Notebook PC

Helpful?

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Upon further research, it seems to be an X11 bug, which is indeed what I'm using. Perhaps there's a setting in about:config I can use?

Helpful?

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another updated: I switched to weyland but I still get the very same problem.

Helpful?

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Your issue is happens in both wayland and X11. How about a different desktop? KDE is waiting... ;-))

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