I'm getting frequent reports from FF that
"A web page is slowing down your browser" -- hangs for 5-10-15 seconds and then clears.
FF 69.0
W10 laptop
cable ip
no ad blocker or other browser helper
These did not appear before yesterday
Not seeing on any other web site, just FT
Doing - quoting, posting replies, ....
For now using the Simple Editor, have not revert back after yesterday editor issues