hello Homer, follow the step and link: *You can try turning off hardware acceleration to see if it fixes the problem. *Click the menu button. and select Options. ... *Select the Advanced panel and the General tab. *Uncheck Use hardware acceleration when available. *Click the Firefox menu and select Exit. ... *Start Firefox the way you normally do. for more information visit given link: [[https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding]] I hope resolve your problem then reply back to me . Thank you