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Preview of LLM Form Filler

LLM Form Filler by Georges_Paul

A Firefox extension that fills forms using a large language model for better filling and less typing. After installing this extension you will need to configure an LLM API of choice by clicking on "LLM API Config" at the bottom of the extension.

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About this extension
If you don't see the sidebar with the extension: press CTRL + B ,click on "Bookmarks" and select "Form Filler" from the drop down list.

This extension can be configured to use Ollama (for using local LLMs) or Openrouter.ai to use LLMs from the cloud.

It works best with bigger models from openrouter.ai such as Claude sonnet 3.5 or better. To get it to work, go to openrouter.ai, create an account and buy API credits. Enter the API key and other details into the extension's settings (scroll down in the extension and press "LLM API Config").

Once the config is done, you can press "fill form" on any website with a form and the extension will attempt to fill it. When using the right model it works better than any existing form fillers that aren't based on LLMs.

Video demo: https://x.com/Jorgey_x/status/1943353990105760145/video/1
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Required permissions:

  • Access browser tabs
  • Access your data for all web sites
More information
Add-on Links
  • Support site
Version
1.9
Size
583.46 kB
Last updated
a month ago (15 Jul 2025)
Related Categories
  • Web Development
  • Social & Communication
Licence
MIT Licence
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Release notes for 1.9
Fixed some security issues.
Nicer buttons.
Fixed extension icon issues.
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