Start Firefox in Safe Mode to check if one of the extensions ('3-bar' menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.
'Remove the cookies' from websites that cause problems. Firefox/Options/Preferences -> Advanced -> Network -> Cached Web Content: 'Clear Now'.Press 'Ctrl + F5' or press 'Ctrl + Shift + R' (Windows,Linux)Ĭlear the cache and remove the cookies from websites that cause problems via the '3-bar' Firefox menu button (Options/Preferences).Hold down the Shift key and left-click the Reload button.You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files. You can try these steps in case of issues with web pages:
