gjs not responding using Firefox 152 on Ubuntu 22.04.5

Frequently Firefox freezes while I'm reading a lengthy page, so I've been doing lots of scrolling. Generally the pages have lots of graphics as well. Eventually either there's a Firefox not responding error or a gjs not responding error. This also happened on Firefox 151 and I was hoping 152 would fix it. This happens at least once a day. Running on a laptop with 4Gb ram. Firefox 152.0.3 gjs 1.72.4 Graphics card is Intel. My network speed varies between 40 and 60 checking on FAST. Having read about possible problems with RAM and swap overload using Firefox, I ran free -h with Firefox open, 3 tabs, and terminal the only apps running. There was 892Mb free RAM and 1.7G free swap. Odd that some resources suggested turning off hardware acceleration while Mozilla says turn it on for Firefox freezes. What are possible causes and fixes?