This is the first I heard of that solution, and we're what, 5 or 6 days from the issue? I read a number of Reddit posts and the Mozilla blog post and I don't recall seeing this mentioned.
Edit: on second thought, maybe I saw this solution (with or without the mention of nightly) and skipped over it as the Mozilla blog post on May 4th said "There are a number of work-arounds being discussed in the community. These are not recommended as they may conflict with fixes we are deploying."
Edit: on second thought, maybe I saw this solution (with or without the mention of nightly) and skipped over it as the Mozilla blog post on May 4th said "There are a number of work-arounds being discussed in the community. These are not recommended as they may conflict with fixes we are deploying."