Features & Capabilities

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.
  • Oh yeah, it's free!
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 OFF by default and must be turned on in Options->Settings.

The developer uses these settings for standard HTML sites:

  • Enable Rule Logging
  • Display Hidden Fields
  • Display Floating 'Apply Rules' Button
  • Automatically Apply Rules (MutationObserver)
  • Manual Apply Rules Mode (querySelector)
  • Match REGEX
  • Run querySelector in ISOLATED world
  • Use URL Hostname/pathname
  • Master Delay (milliseconds) 750
  • Fill Delay (milliseconds) 125
  • Global Hotkey ctrl+z
  • Use OS Default Theme
  • Use userScripts.execute (Chromium only)

The developer uses these settings for reactive framework 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 (Chromium only)

Comments to: fillitupextension@gmail.com

User Growth & Download Statistics

Manifest V3 Add-on
By:
FillitUp!
Daily users:
2
Version:
0.0.70 Last updated: 2026-06-09
Version code:
6299105
Creation date:
2025-05-16
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
Host permissions:
  • <all_urls>
Content scripts matches:
  • <all_urls>
Size:
233.60KB
Email:
fi*****@gmail.com
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-07-27
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
FillitUp!
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/fill-it-up/
Email:
fi*****@gmail.com

Is Fill it Up! Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Fill it Up! requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • Medium ****** ********** ** ******** ********** *** ********* ******* ******** ****** ******** ****** ********
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Fill it Up! is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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