Recently switched to Firefox 61, any attempt to open a new tab from the command line with
hangs.. then fails with the "Firefox is already running but is not responding." message.
I have tried deactivating a few weird plugins (e.g. tridactyl) and restarting ff with no success.
I can see plenty of topics out there regarding this very error message, but they all address the problem of firefox not wanting to be clicked open.
In my case, firefox is already open (and looks fine), but I cannot add a
--new-tab or a
--new-window to it from command line anymore.
What could be the problem?