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I accessed my computer via Remote Desktop and when I used it locally again, my Firefox has some issues.

The Minimize and Maximize and Close buttons cannot be used, when I click on them, the 'original' Windows theme pops up but none of them works.

enter image description here

If I grab it with the mouse and unmaximize it, I get this view:

enter image description here

What's happening with Firefox? How can I avoid this situation? Why can't Firefox handle this situation properly?

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    What Remote Desktop software do you use? I know that some change 32-bit color depth to some lower setting. Is the issue related to color depth? Does it occurs when switching? Have you tried to update video card driver?
    – Virus_7
    Mar 16, 2015 at 15:11
  • I used the built-in Windows 8.1 Remote Desktop with default settings. It occurred when I logged back into my local computer. The VGA driver is the latest, it is an i3-4350 CPU with a CPU-integrated VGA.
    – Nestor
    Mar 16, 2015 at 16:18
  • This is probably because compositing is disabled when using RDP (except with RemoteFX). If you think Firefox is misbehaving, do file a bug report.
    – Daniel B
    Mar 17, 2015 at 12:32
  • I don't think, I know that FF is misbehaving...it is obviously buggy. I will send them a report.
    – Nestor
    Mar 18, 2015 at 8:14

2 Answers 2

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Some remote desktop applications change Windows theme and color settings for the end user to have better performance. This could have caused the issue. A simple restart would fix everything.

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    Okay, I know that a restart would - temporary - solve the issue but why does Firefox behave like this? Why doesn't it correctly handle the color depth change (or whatever is causing this)?
    – Nestor
    Mar 16, 2015 at 16:19
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I had the same problem but after doing some research, I found that disabling hardware acceleration prevents that from happening.

I hope this helps

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    Welcome to Super User, thanks for your contribution. Could you please provide steps on how to do that in your answer?
    – Daniel B
    Jun 10, 2016 at 18:45
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    I intend to use Hardware Acceleration to decrease the load on my CPU. It is a bug in Firefox, so I expect it to be fixed (though as they are 8 years behind Chrome and Internet Explorer with threading, I don't expect too much).
    – Nestor
    Jun 10, 2016 at 18:45
  • @Nestor: Please be sure to let them know how much you paid for their product when you complain. Jul 8, 2016 at 20:02
  • @JuliePelletier You mean if it is free, it is allowed to be inferior or useless? I don't think so. As millions of users use their product they should have the decency to provide working solutions. Or don't do it... I know, I can use other browser (which I do except one place). I also think, Chrome should be a working browser, yet they have 3 year old bugs: bugs.chromium.org/p/chromium/issues/…
    – Nestor
    Jul 9, 2016 at 7:56

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