if i open a tab then close it the tab page moves to the original page and closing Firefox completely is the only way to fix it
when I don't have any tabs open and I open a tab and close it again without going to a website the Firefox tab page shows up on the original web page I was on and won't change. I can hit the back button or the refresh button or type in a new website and the tab page stays on the screen. the only way to get rid of it is to close firefox
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Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is is causing the problem.
- switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
- do NOT click the "Refresh Firefox" button on the Safe Mode start window