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Want Purple page of privacy

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I have a Lenovo Windows 10 pro laptop and I cannot get firefox to open to the purple page w/ mask that tells me that privacy is occurring.

I have a Lenovo Windows 10 pro laptop and I cannot get firefox to open to the purple page w/ mask that tells me that privacy is occurring.

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Firefox won't show the purple mask when you start Firefox in permanent Private Browsing mode (Always use Private Browsing mode; Never Remember History). In permanent PB mode all windows are New Private Window by default. You can use an extension to get Private Browsing mode support per tab and get the purple mask.

Private Browsing mode tabs get a dashed underline You can toggle Private Browsing mode on/off via the right-click context menu of a tab