@hisold @stefan @orrickle Never mind. I did find a way to make LibreWolf my default browser, but now I'm finding issues.
First I found that I had to turn off "Delete cookies and site data when LibreWolf is closed" because I wasn't willing to log into everything again every time I close the browser (which I do at least once a day, and obviously have many times today). Solved.
But time zones in Todoist weren't working, so it thinks today is Tuesday (it's ~5pm on Monday). I turned off ResistFingerprinting, which apparently is the cause of this issue, and now it works again, but have I now neutered LibreWolf to the point that I should just go back to Firefox?