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1 = override the setting under (A) and always use new windows.2 = apply the setting under (A) to normal windows, but NOT to script windows with features (default).0 = apply the setting under (A) to ALL new windows (even script windows with features)

To force those into a tab as well, you can change this preference to 0: (B) _newwindow.restriction - for links in Firefox tabsД«y default, if a page sets width, height, or toolbars for a popup, Firefox will let it be a separate window.

3 = divert new window to a new tab (default).

This is the one that has a checkbox on the Preferences page: (A) _newwindow - for links in Firefox tabs (3) Review/Adjust the preferences as follows: (2) In the search box above the list, type or paste neww and pause while the list is filtered (1) In a new tab, type or paste about:config in the address bar and press Enter/Return. For the sake of completeness, I'm going to show all three of these related preferences: To ALSO divert those to a tab, you need to make a setting change. One reason a link launched from a Firefox tab might not be diverted from a new window to a new tab is if the site specifies features for the window, such as width and height. Hi jamesburbidgeking, is it Outlook on the web in a Firefox tab, or the Outlook that is part of the Office suite installed as a separate app on the system?

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