Do you know how or when the history was cleared? Look on your desktop. Do you see a folder called; '''Old Firefox?''' '''https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile''' '''https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles''' ----------- Update your Flash Player '''Version Version: 20.0.0.306<br>https://www.adobe.com/products/flashplayer/distribution3.html''' '''Note: Windows users''' should download the ‘’’active_x’’’ for “Internet Explorer,” '''and''' the ‘’’plugin’’’ for “Plugin-based browsers” (like Firefox). Note: Windows 8 and Windows 10 have built in flash players and Adobe will cause a conflict. Install the ’’’plugin’’’ only. Not the ’’’active_x’’’. See if there are updates for your graphics drivers https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration