Web Developer Form Filler is a Firefox extension designed to streamline the process of filling out web forms. It allows users to save form data and refill it with just one click, enhancing productivity for web developers and users alike. The extension supports filtering saved forms by URL, domain, or globally, making it easy to manage multiple entries. Users can also set hotkeys for quick access to frequently used forms, further simplifying form submission tasks.

Additionally, the add-on provides options to export and import saved form sets, facilitating easy transfer between different browsers. It synchronizes saved forms across devices, ensuring that users have access to their data wherever they are. As a FOSS and MIT licensed tool, it encourages contributions from the community, making it a versatile choice for web development and IT professionals.