Firefox browser keeps being hijacked. Certain websites no longer open correctly and google maps and youtube don't work at all.
There are some websites that I visit regularly and now they aren't being displayed correctly at all in Firefox. Google Maps and YouTube do not work properly if at all through Firefox or Chrome on my machine. I have tried searching for malware, viruses and rootkits and have had absolutely no success. I don't understand what has changed to cause pages to not display correctly and to cause all these malfunctions. What could the problem be?
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Firefox/Tools > Add-ons > Appearance).
Do NOT click the Reset button on the Safe Mode start window.