Anyone looking for a lightweight extension to fill forms, try to use this one. Simple Form Fill. Created by Sebastian Blask, this add-on provides a straightforward way of filling forms. No labels, no profiles. No bells and whistles.
After the installation, open the add-on preferences, and add information as much as you need such as name, address, email address, website, etc.
Alternatively, you can also highlight text and select “Add to Simple Form Fill” from the right-click menu.
To fill a form, just right-click on an input field, select Simple Form Fill menu and select the appropriate information. That’s it.
It’s restartless, so there is no need to restart the browser after installing the extension.
Download and install Simple Form Fill from here. It’s only around 12 KB.