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Why do I have 2 blue banners at top of page?

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oani@verizon.net
oani@verizon.net
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I have the normal Firefox blue banner at the very top, then I have a blue banner underneath that has an orange Firefox tab.

How do I stop blank screens from appearing when I load Firefox?

I have the normal Firefox blue banner at the very top, then I have a blue banner underneath that has an orange Firefox tab. How do I stop blank screens from appearing when I load Firefox?

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cor-el
cor-el
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This issue can be caused by an extension that isn't working properly.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions or hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).