you add text that you use on a regular basis to the add-on which becomes then selectable whenever you fill out web forms on the internet. so, instead of filling out the required information manually each time, you click on a button next to the form to add information the informenter add-on provides you with instead.

Write the above sentence using proper case.
You add text that you use on a regular basis to the add-on which becomes then selectable whenever you fill out web forms on the Internet. So, instead of filling out the required information manually each time, you click on a button next to the form to add information the InFormEnter add-on provides you with instead.