I noticed with yahoo finance, and possibly another site or two I do not recall, that firefox becomes unable to open any other URLS and seems to lock up after visiting one or more of my saved favorate/bookmarked Yahoo Finance Urls. I found a solution that works here... https://support.mozilla.org/bm/questions/1349884#answer-1441665 The solution is not permanent and has to be applied everytime I open firefox and visit a site that causes this problem. It does NOT seem to affect M.S. Edge at all. Is firefox / mozilla working on a permanent fix for whatever causes this issue?