browser.link.open_newwindow ,
browser.link.open_newwindow.override.external , and
browser.link.open_newwindow.restriction

Within the last day (not sure exactly when) when I try to open Firefox with an external link and there is no existing window, it opens but seems to ignore the link itself. If I then try the external link again with the new window that was opened the first time it will open a new tab and display the link. Up till now it has been working fine and I've made no changes to Firefox for a while, though I do see that my Firefox was updated at about 2am on August 30, two days ago, from version 116.0.3 to 117.0. I'm running MacOS 13.5.1 Ventura. I did just update that from MacOS 13.5 Ventura. Unfortunately I only noticed this after that update and do recall this Firefox problem occurring before I looked closely enough to know what was happening (that feeling you get when you feel like something is different but you don't quite know what) so I don't know if it only began after the MacOS update. I did play around with: '''browser.link.open_newwindow''' , '''browser.link.open_newwindow.override.external''' , and '''browser.link.open_newwindow.restriction''' settings to see if they might make a difference but nothing fixed the problem. But I restricted myself to settings that seemed likely and haven't checked out every possible combination. If I wasn't brain dead just now I'd try to give more info but just can't. Sorry. Thanks for your help.