FF 19.0 keeps switching to full-screen mode

This is most annoying! I'll be happily working away when suddenly all my toolbars disappear. At first I had no idea what was going on, and would have to close and reopen FF to get them back, then I discovered that the browser was just switching arbitrarily into full screen mode. I've looked to see if maybe there is something in an inconvenient place that I'm accidentally clicking on to cause this, but no. It just happens for no reason. Is there a fix for this?

Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
*Do NOT click the Reset button on the Safe mode start window or otherwise make changes.
*https://support.mozilla.org/kb/Safe+Mode
*https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes

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       at DisplayModeTest.main(DisplayModeTest:237)and for all other programs that try to switch to full-screen mode i get similar ones (although isFullScreenSupported() returns true). any ideas why this error is thrown and how to fix this?
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    Here is a good place to get started:
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    Start Firefox in <u>[[Safe Mode]]</u> to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
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    * https://support.mozilla.com/kb/Safe+Mode
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    I've searched all over Google and in here but am surprised to
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    > background-position: 50% 50%;
    > margin-top: 4%;
    > margin-bottom:4%;
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    Can we see the rest of the page?
    Murray --- ICQ 71997575
    Adobe Community Expert
    (If you *MUST* email me, don't LAUGH when you do so!)
    ==================
    http://www.projectseven.com/go
    - DW FAQs, Tutorials & Resources
    http://www.dwfaq.com - DW FAQs,
    Tutorials & Resources
    ==================
    "afriendofcheese" <[email protected]> wrote
    in message
    news:g8gaha$oh7$[email protected]..
    > I've searched all over Google and in here but am
    surprised to find nobody
    > else
    > with the same problem!
    >
    > How do you keep all of the items centered inside a Div
    when switching to
    > full
    > screen mode in IE? Everything in my "#global" Div shifts
    upwards creating
    > a
    > big mess and doesn't stay where it should in my content
    box (which is part
    > of
    > the background. There's no problems when resizing the
    window by dragging,
    > just
    > when using full screen mode. Here is my body and #global
    code:
    >
    > body {
    > background-image: url(images/background2.jpg);
    > background-color:#ECE5C8;
    > background-repeat:no-repeat;
    > background-position: 50% 50%;
    > margin-top: 4%;
    > margin-bottom:4%;
    > }
    >
    > #global {
    > margin:auto;
    > position:relative;
    > width: 784px;
    > height:554px;
    > }
    >
    >
    >
    >
    >

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