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how to cancel and go back to original format
I didn't realize I was opening a door to advertisements
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Please explain the problem in detail. What happens? Error messages?
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
Firefox 42+ has a Tracking Protection feature that is enabled by default in Private Browsing mode. Firefox shows a shield icon at the left end of the location/address bar in case content is blocked by Tracking Protection, click the shield icon for more information.