In addition to mozilla being unresponsive several times a day, two days in a row I cannot close a tab or any tab. I have to restart my computer when this happen
Two days in a row besides mozilla being unresponsive several times a day, my tabs freeze. I cannot close them. I can tap on the "x" for the tab and it will not close. I have to restart my computer with all the tabs open. I only had two tabs open when it froze.
Opaite Mbohovái (1)
Have you updated to Firefox 36.0.1 ?
What were you doing at the time? The same site? Different sites?
Start Firefox in Safe Mode {web link} While you are in safe mode;
Type about:preferences#advanced<Enter> in the address bar.
Under Advanced, Select General. Look for and turn off Use Hardware Acceleration.
Poke around safe web sites. Are there any problems?
You may have ad / mal-ware. Further information can be found in the Troubleshoot Firefox issues caused by malware article.