Wolfgang A. said: I found a fix, but it was extremely finnicky. So, I use NoScript. And I was able to get it to work by toggling "identitytoolkit.googleapis.com" to be active. Problem is, due to the continuous boot loop, it was extremely hard to mess with the enabled scripts. I had thought I'd enabled all scripts the first time, but what really happened is they got partially enabled, before the page put up the error, and prevented me from accessing the add-on menu. Plus, there were instances along the way where I had to reset the browser, because I would enable all scripts, but for some reason it still kept looping despite that. After a lot of attempts, finally got an instance where I was able to enable all scripts, and then filter for which one was the one that needed to be turned on to work. Was odd that I didn't need that on until now, though. Was using this script array for years with no issue up until then (Was uploading characters to a game I owned, before switching to a game I was a player in when the break happened). At least it works I suppose. I managed to get it to boot on another browser, and it booted, even though that same script is off. Exactly the same thing happened to me. Experimenting with other browsers showed that the issue must be due to my script-blocker, so thanks for saving my time figuring out which script was the issue. I, too, have been using Roll20 fine for years without enabling that script, so something must have been changed in the last few days.