After Firefox updated the extension READ ALOUD will freeze if I try to jump through the page and no longer work.

I use an old Mac mini. 5 months ago I got a Firefox update. After that the extension Read Aloud no longer works correctly. If I am on a webpage and try to have the extension Read Aloud read it initially it will work when I open Firefox. However if I try to jump through the article it immediately freezes. At that point it will not work for any webpage unless I close the browser and then reopen it. I also have the extension Read Aloud on my Chrome browser. When I use Chrome it works correctly. I normally use Firefox. However now if I want the computer to read to me, I have to take the extension in Firefox and past it in Chrome. I currently use Firefox 158.0 64 bit. However this problem occurred at least 4-5 earlier versions.