Hey Jamie. I can't reproduce the freeze on any of those websites on my Windows 10 machine using this try build but Rares encountered the same hang after performing some actions on the page (clicking on several links, and navigating through the header items). So he had to stress test the pages a little bit for that freeze to occur on his end. I'm sending the dump generated on that machine, hopefully, it points out the cause. We also tested on a Windows 7 machine. We couldn't reproduce the freeze but we encountered a random crash. Since we don't have any clear steps we are not sure if this is caused by the patch applied to this try build, if it surfaced out now since the freeze is no longer reproducible or if this is something different: https://crash-stats.mozilla.org/report/index/ee91831e-2d96-4ba8-9b7c-190d30221006
Bug 1793408 Comment 10 Edit History
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Hey Jamie. I can't reproduce the freeze on any of those websites on my Windows 10 machine using this try build but Rares encountered the same hang after performing some actions on the page (clicking on several links, and navigating through the header items). So he had to stress test the pages a little bit for that freeze to occur on his end. I'm sending the dump generated on that machine via slack, hopefully, it points out the cause. We also tested on a Windows 7 machine. We couldn't reproduce the freeze but we encountered a random crash. Since we don't have any clear steps we are not sure if this is caused by the patch applied to this try build, if it surfaced out now since the freeze is no longer reproducible or if this is something different: https://crash-stats.mozilla.org/report/index/ee91831e-2d96-4ba8-9b7c-190d30221006