That sounds pretty odd... if you've used previous versions of Firefox on this device you might try refreshing: https://support.mozilla.org/en-US/kb/refresh-fir

That sounds pretty odd... if you've used previous versions of Firefox on this device you might try refreshing: https://support.mozilla.org/en-US/kb/refresh-firefox-reset-add-ons-and-settings https://support.mozilla.org/en-US/kb/refresh-firefox-reset-a... If it still happens and you want to dig into it a little further the profiler at http://perf-html.io/ http://perf-html.io/ allows you to gather and dig into + share details that can help fix.