Recently (past month or so) on some websites with a lot of active frames, Firefox 128 hangs and beach balls. Sometimes I can kill that tab (only have 1 or 2 tabs open). iStat shows about 400-500% cpu. If I open the same site in Safari, I get a brief surge of extremely high cpu, but then things are OK. Not sure exactly which update started it, as I usually let Firefox update whenever it needs to. Any ideas?