Firefox add-ons are enabled by default when you install them. Sometimes you might want to disable a particular add on temporarily for whatever reason.

Sometimes, Firefox will disable some add-ons and you want them enabled. You need to be careful with this though,  because Firefox might have disabled the add-on for a reason.

Launch Firefox. Click on the Firefox menu and select ‘Add-ons’.   On the add-ons page select the add-on you want to enable or disable.

Use the same button to Enable and Disable.

Enable and Disable Add-ons on Firefox for Android:

You can also enable and disable Firefox add-ons on your Android device.  The process is very simple.

• Launch Firefox.
• Tap on the Firefox menu.
• Tap on ‘Tools’  from the menu.
• From the tools menu, tap on ‘Addons’.
• You will see a list of addons.  Touch and hold the Add-on you want to disable or enable.

NB: The procedure on Firefox  for Apple is more or less the same.