video issues
After the most recent update (Nov 18 2017) videos played on youtube and other sites are playing, but the colours are superimposed making the video look green and purple and making it look like it has double vision. Taking these links into a different web browser resolves the issue so I know it's not a problem with the graphics card.
Alla svar (1)
uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do : https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles
Reinstall with Current Release Firefox 57.0 with a Full Version Installer https://www.mozilla.org/firefox/all/
Update Video Card Drivers
Please let us know if this solved your issue or if need further assistance.