Click on it and a window will pop up showing you the current version you are using. Step 2: Open Firefox browser and check the version.Ĭlick the Firefox icon on top left corner, you’ll see “About Firefox”. If it turns out that the Mac machine is frozen, you’ll probably have to do a hard reboot by pressing the power button – holding it for three seconds, then press it again to restart your Mac. How to Fix a Slow or Freezing Firefox on Mac Step 1: If Firefox becomes totally unresponsive, force quit.
Those plugins are very likely to cause Firefox to freeze.
