Product Firefox Release Channel release Version 57.0.3 Build ID 20171226083017 OS Windows 7 OS Version 6.1.7601 Service Pack 1 bp-445cab2e-4689-4440-8ac6-20c3c1180103 Signature: js::jit::CodeGenerator::visitValueToString --------------------- [https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Start Firefox in Safe Mode] {web link} by holding down the '''<Shift> ''(Mac=Options)''''' key, and then starting Firefox. A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Is the problem still there?

Also update Flash (21.0.0.197 is too old; current is 28.0.0.126). You can download the latest Flash player plugin for Firefox on this page. *https://get.adobe.com/flashplayer/otherversions/