Firefox crashes repeatedly, often on scrolling down a web page. Most recently, it was my gmail contacts list, but there are several other examples. From about:crashes I've copied below a handful of the two dozen or so crashes from the last couple of weeks. https://crash-stats.mozilla.com/report/index/bp-e695fe01-39ec-49f1-832a-adb7a2150511 https://crash-stats.mozilla.com/report/index/bp-907d1ef6-af8c-42dc-a0a6-188682150511 https://crash-stats.mozilla.com/report/index/bp-c0f4c486-b424-4109-a22d-1ec902150510 https://crash-stats.mozilla.com/report/index/bp-415a9aca-64e5-4b54-930d-29ea22150504 https://crash-stats.mozilla.com/report/index/bp-18ba011d-1663-4e9a-9c15-736a32150428 https://crash-stats.mozilla.com/report/index/bp-d79cc163-d47a-42fc-a95b-2917e2150426 Many thanks.