I accessed your link, and one of my add-ons crashed. Please post your crash reports for the last three days. --------- Product Firefox Version 45.0.2 Build ID 20160407164938 Release Channel release OS Linux OS Version 0.0.0 Linux 2.6.32-504.el6.x86_64 #1 SMP Tue Sep 16 01:56:35 EDT 2014 x86_64 https://support.mozilla.org/en-US/kb/update-firefox-latest-version '''47''' --------------- bp-42c23bb3-2899-40b0-8621-cf7a72160627 Signature: ssl_LookupSID | ssl2_BeginClientHandshake This is for Sumo's Related Bugs 1233671 UNCONFIRMED --- Firefox 43 crashes regularly 1110027 UNCONFIRMED --- crash in ssl_LookupSID | ssl2_BeginClientHandshake ------------------ Start '''[https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode Firefox in Safe Mode]''' {web Link} by holding down the '''<Shift><br> ''(Mac=Options)'' ''' key, and then starting Firefox. A small dialog should appear. Click '''Start In Safe Mode''' (not Refresh). Is the problem still there?