Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Fake Data - A form filler you won't hate

Fake Data - A form filler you won't hate by Hater Apps

Fill form fields on the fly with fake random data. No configuration needed, just double click on each input you want to fill. Has an autolearn feature for unrecognised fields.

4.5 (21 reviews)4.5 (21 reviews)
1,966 Users1,966 Users
You'll need Firefox to use this extension
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Context menu on input fields allows you to quickly specify what data should be inserted. There is no setup needed.If you want to dig deeper in the extension, you will be welcomed with an amazing looking and powerful options page.Every Generator and Field can be customized by your own taste.Don't worry! If the available options doesn't fit your needs, you can always run your custom javascript code and make the extension do EVERYTHING you want.You can also add unlimited options to the context menu and make them do EVERYTHING you want.You can also nest items so it will look more pretty.
About this extension
‼️ After installation you will have to reload the tabs that are already open for the extension to work properly inside them. ‼️

✔️ Fake Data will help you insert random values in any form field.

✔️ Generate random names, emails, addresses, phone numbers and many more types of data.

✔️ No configuration or initial setup required, unless you want to. Just right click on any input field and choose what type of data to insert.

✔️ Easy keyboard shortcuts will make your work even faster.
On Mac: (Cmd + Double Click)
On Windows / Linux: (Alt + Double Click)

✔️ Auto learn feature will ease your work even more. You don't have to tell it twice to remember.

✔️ Use JavaScript to customise the data the way you want.

✔️ User friendly interface and easy to understand configurations. Everything works as you would expect.
Rated 4.5 by 21 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
15
4
4
3
1
2
0
1
1
Read all 21 reviews
Permissions and dataLearn more

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Display notifications to you
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
Version
4.13.0
Size
3.36 MB
Last updated
24 days ago (Jul 30, 2025)
Related Categories
  • Feeds, News & Blogging
  • Web Development
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Add to collection
Report this add-on
Support this developer

The developer of this extension asks that you help support its continued development by making a small contribution.

Contribute now

Release notes for 4.13.0
➕ You can now fill input fields with static text without having to write custom code anymore.See docs
➕ You can also update Default Generators or create Custom Generators that return static text.See docs
➕ And now you can also mark an input field to be skipped from filling.See docs
✔️ Fixed missing Dutch city names.
More extensions by Hater Apps
  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

  • There are no ratings yet

Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.