# Fill it Up!

> Automatically fill form fields

Canonical page: [https://chrome-stats.com/d/fill-it-up](https://chrome-stats.com/d/fill-it-up)

## Overview

- **ID:** `fill-it-up`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** FillitUp!
- **Category:** web-development,appearance,shopping
- **Daily users:** 2
- **Version:** 0.0.71
- **Last updated:** 2026-08-23
- **First published:** 2025-05-16
- **Size:** 234 KB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/fill-it-up/)

## Description

FillitUp! allows you to automate the repetitive entering of form fields.  Just save your current fields and have them automatically fill next time you visit that page.

Features:
 - Supports standard form fields such as INPUTs, SELECTs, TEXTAREAs and content editable DIVs
 - Supports Google Forms
 - Supports Microsoft Forms
 - Supports running of custom JavaScript routines to fill those pesky non-standard fields
 - Automatically save all your fields with the click of a button, or optionally decide which fields to save
 - Automatically fill fields on page load, or optionally manually fill at the click of a button
 - Logically group your saved fields and optionally only fill fields in that group
 - JavaScript editor window to create custom JavaScript routines with the option to immediate test them
 - Special filters to allow you to change the default behavior of FillitUp! for those extra stubborn websites
 - Option to fill fields discovered by the Mutation Observer or by querySelector().  Even fill automatically using one, and manually with the other.
 - Options to Export and Import your entire FillitUp! environment to ensure you never lose your hard entered work.
 - Already tested on thousands of websites by a sweepstakes addict.  I wrote it for my own personal use, and decided to make it available to anyone who wants to try it out.
 - Open it Up! and Fill it Up! work hand-in-hand to automate the process of opening lists of URLs and filling in the fields.
<ul><li>Oh yeah, it's free!</li></ul>
Caveats:
 - This is NOT a username/password saver.  All saved fields are in clear text, so don't use it for that.
 - This extension has been written for English language websites.  It's been minimally tested on non-English sites.  Your mileage may vary.
 - This extension will NOT automatically fill a form on the first visit to a website.  Entries must be saved and will be filled on subsequent visits.
 - There are a few configuration popups in the settings page.  If you have a popup blocker, you might have to adjust its settings.
 - This extension is NOT designed to fill CAPTCHAs.

On initial installation, automatic filling is turned ON in QS mode by default and can be changed in Options-&gt;Settings.  

The developer uses these settings for all sites:
- Enable Rule Logging
- Display Hidden Fields
- Display Floating 'Apply Rules' Button
- Automatically Apply Rules (querySelector)
- Manual Apply Rules Mode (querySelector)
- Match REGEX
- Run querySelector in MAIN world
- Use URL Hostname/pathname
- Master Delay (milliseconds) 750
- Fill Delay (milliseconds) 125
- Global Hotkey ctrl+z
- Use OS Default Theme
- Use userScripts.execute

Comments to: <a href="/" rel="nofollow">fillitupextension@gmail.com</a>

## Rankings

- #67,903 — Overall

## Permissions and access

### Permissions

- `activeTab`
- `scripting`
- `downloads`
- `contextMenus`
- `storage`
- `userScripts`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [FormFiller](https://chrome-stats.com/d/smart-formfiller) — 48 users, 5.00 / 5
- [Filled - Autofill Google Forms](https://chrome-stats.com/d/filled-autofill-google-forms) — 124 users, 1.00 / 5
- [Form Secretary - Smart Autofill Assistant](https://chrome-stats.com/d/form-secretary) — 1 users
- [Autofill forms](https://chrome-stats.com/d/autofill-forms) — 1 users
- [Autofill](https://chrome-stats.com/d/autofill-quantum) — 19,321 users, 3.94 / 5
- [FieldFiller](https://chrome-stats.com/d/fieldfiller) — 2 users
- [Data FillR](https://chrome-stats.com/d/data-fillr) — 2 users, 5.00 / 5
- [Form Filler Buddy](https://chrome-stats.com/d/form-filler-buddy) — 6 users
- [SimpleFill - Autofill Forms](https://chrome-stats.com/d/simplefill) — 654 users, 3.96 / 5
- [WebApp Form Filler](https://chrome-stats.com/d/webapp-form-filler) — 1 users
- [Form AutoFill Pro](https://chrome-stats.com/d/form-autofill-pro) — 1 users
- [Instant Form Filler](https://chrome-stats.com/d/instant-form-filler) — 1 users

---

Source: [Chrome-Stats](https://chrome-stats.com/d/fill-it-up)