How can I be sure that Private Browsing is active? 58.0 64-bit
Since this upgrade, I no longer see the mask icon at the top of the screen. How can I be sure that Private Browsing is active?
If you opened a new Private Browsing window, it is active.
In addition to the above :
It wll be explained in this article (you'll have to scroll down) :
In the previous version, a Mask would appear at the top of the screen. It no longer is visible... prompting my question.... How do I know I am in Private Browsing mode?
In that article I gave you the link to, did you scroll down to the part that
"Important: When Firefox is set to Never remember history you won't see a purple mask at the top of each window, even though you are effectively in Private Browsing mode. To restore normal browsing, go to your Privacy Options and set Firefox to Remember history. "