Since Firefox 106.0.1 in Windows 10 & 11 when you have a private window open via private_browsing.exe and you have, e.g., an MS Word doc file with Internet links, attempting to access by pressing Ctrl when clicking opens a separate ''normal'' Window instead of a new Tab in the current private window. This offsets most advantages of the updated private_browsing.exe. Before this update it always worked properly. It still works properly and opens a new tab if you're in a Normal window to begin with. Also note that before the update there was no way to pin both normal and private links to the Windows taskbar. Now you can do that but this. Hopefully if/when the bug is resolved this ability to have both pinned to taskbar will be retained.