Firefox randomly switches windows

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For the past several versions, when I have multiple open Firefox windows, focus will randomly switch to one of the non-active windows.

I frequently have multiple Firefox windows open, some with more than one tab. All the windows are maximized. In the visible (top-most) window, I may be scrolling the screen, or moving the mouse around, hovering over various objects. Suddenly, one of the other, inactive windows appears over the top of the window I was currently working in. This happens intermittently, and I have seen no pattern to it.

Is anyone else experiencing this? Any idea how to fix it?

Thanks for your help.

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I’ve not experienced this…but when stuff like this does occur, (downloading a new copy) an un-install and re-install generally fixes issues of this kind.

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Hi –

I’ve experienced this, but am switched to an opened Word document. Have inquired about fixes, no answers…

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I’ve briefly experienced this since upgrading to v30.0 but as I rarely use FF, just thought it was a glitch, but as others are also experiencing it then perhaps it’s a bug in v30.0.

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I’m not sure if I ever saw this on Windows 7 (or XP), but it happens several times every day on Windows 8.0/8.1. I’ve seen it on FF 28.0 to current, and maybe a couple of versions earlier than this. It doesn’t seem to be affected by whatever else is running at the time.

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I run Win 7 but have also had this in IE when one of the open windows has been for my home page – I’d forgotten about that as I now make sure I don’t leave any on my home page.

Not sure if Windows has some way of prioritizing a tab ?

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Just to add my 2p worth, I have W8.1 and FF30 and have never had the problem (even with older versions). I suppose it’s the price we pay for having massively modifiable hardware and software – my set-up is different to your set-up which is different to his set-up and her set-up, so trying to pin down these problems can be… well problematical. At least if you know some others share your issue and some don’t, it’s probably in your set-up rather than a bug.

Eliminate spare time: start programming PowerShell

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