Method 1 : Start Mozilla Firefox as you would normally. Click on the orange Firefox button on the top left and select Help → Restart with add-ons disabled as shown in the picture below : This would make Firefox close and restart with all the add-ons disabled.How do you stop add ons?
Open your Internet Explorer browser, Go to <Tools> at the top on the right. Go to <Manage Add-ons>, then <Enable or disable Add-ons>. Once opened, click on the module that you want to disable and at the bottom you will see <Enable or Disable> Check <Disable>.