This is a tool you definitely need on your PC especially if you often install and uninstall various software. In addition, this software will also remove all files and registry entries associated with the application you want to remove ensuring that these files don’t interfere with your system. In case you don’t know, uninstaller software such as IObit Uninstaller completely removes any application from your PC. There are several methods that you can use to reinstall Firefox, but the most effective one is to use uninstaller software. However, you can fix that problem, simply by reinstalling Firefox.

Sometimes your installation can get corrupted, and that can cause various issues. If Firefox issues are interfering with your work, perhaps you should try reinstalling Firefox. If Firefox works normally in Safe Mode, the issue is probably caused by some third-party program that you have installed, so you’ll have to find the problematic program and disable it in order to fix this problem.

When Safe Mode starts, try disabling any extensions from Firefox by following the steps above.

After your computer restarts again press F5 to choose Safe Mode with Networking.

Once your computer restarts, choose Troubleshoot > Advanced options > Startup Settings and click the Restart button.

Press the Start button, click the Power button, press and hold Shift on your keyboard and choose the Restart option.

If you can’t open Firefox at all, it’s always a good idea to run it from Safe Mode.

If the problem is fixed, you can try enabling extensions one by one until you find the one that is causing you problems.Īccording to some users, the add-on that caused the crash for them was FlashGet, but bear in mind that almost any add-on can cause Firefox to crash, so you might have to disable or remove certain add-ons in order to fix this issue.

Restart Firefox and check if the issue is resolved.

Now disable all extensions by clicking the Disable button.

A list of installed extensions should open.

Open Firefox and click the Menu button in top right corner.

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How to do a clean install of firefox