Please update your 2017 video drivers from here https://downloadcenter.intel.com/product/81496/Intel-HD-Graphics-4600 as info sent says your drivers are from 2013 That may be a reason why or not but https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration I would try and update all hardware drivers manufactures site if they are still posting them. Could get the latest Chipset Drivers from Intel No idea if is a Intel machine but if is https://www.intel.com/content/www/us/en/support/detect.html and https://www.intel.com/content/www/us/en/support/topics/utility-tools.html FYI: your Flash is way out of date and is a security risk https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> Try this after the above is done : https://support.mozilla.org/en-US/kb/forum-response-clean-reinstall To fix Windows 7 issues : Repair System Registry and Files (FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN) To run the SFC command use the Windows key + X keyboard shortcut to open the Power User menu and select Command Prompt (Admin). Type "SFC /SCANNOW" (without quotes or copy/paste) and press Enter. For more information on using SFC, please refer to the Microsoft KB: Use the System File Checker tool to repair missing or corrupted system files Run the Windows Deployment Image Servicing and Management (DISM) and System File Checker (SFC) tools as Administrator. The DISM and SFC tools scan the integrity of the Windows image and all protected system files replaces corrupted, damaged and incorrect versions. (FOR DOING Above & Below - WINDOWS All OTHER VERSIONS - Use Search To Find Command Prompt ** Enter CMD.exe to Find COMMAND PROMPT Then Right Click & RUN AS ADMIN) Please let us know if this solved your issue or if need further assistance.