Privacy Policy
Last updated: September 1, 2026
This policy applies to the Free edition of Lero Lero – Form Filler, a Chrome extension for generating fictitious test data and filling web forms.
The Free edition is local-first. It does not have a backend, analytics, advertising, telemetry, account system, or AI/network integration. Data handled by the extension is processed inside the user's browser and is not transmitted to the developer or to third parties.
Data the extension handles
Website and form metadata
To detect and fill form controls, the extension can read metadata from
the webpage the user is interacting with, including field type, label,
name, id, placeholder, autocomplete
metadata, accessibility labels, selectors, validation constraints,
select options, and radio/checkbox values.
The visual Profile Editor intentionally does not capture the current text value of text inputs or textareas in its inspection snapshot. Some non-text form metadata, such as available select/radio values, can be included because it is required to configure and preview filling rules.
Current page URL
The extension uses the current page URL locally to resolve which saved profile applies to that page and to create basic origin, prefix, or exact matching rules.
It does not maintain or transmit a browsing-history database.
Settings, profiles, templates, and fixed values
The extension stores user settings and up to three Free profiles in
chrome.storage.local.
Profiles may contain URL matching rules, CSS selectors, generator choices, templates, and fixed values entered by the user.
A user can choose to place personal information in a fixed value or template. If they do, that value remains local to their Chrome extension storage and is not transmitted by the Free edition.
Temporary editor state
The visual field picker and Profile Editor may keep a temporary
page-inspection snapshot in chrome.storage.session.
This can include field metadata and source tab/window identifiers needed to return to or highlight the selected field. This state is temporary browser-session state and is not sent to a server.
Generated values
Generated names, addresses, identifiers, text, dates, emails, and other fictitious values are created locally.
Values inserted into a webpage are not sent to the developer and are not persisted by the extension merely because they were generated or filled.
How data is used
Data is used only to provide the extension's user-facing form-filling features, including:
- detecting form fields;
- generating suitable fictitious values;
- applying user-configured rules and templates;
- resolving local profiles for the current page;
- previewing profile rules;
- highlighting and selecting fields.
The Free edition does not use handled data for advertising, profiling, creditworthiness, marketing, analytics, or unrelated purposes.
Data sharing and transfers
The Free edition does not sell, rent, share, or transfer handled webpage or form data, current page URLs, settings, profiles, templates, fixed values, or generated values to third parties.
The Free edition makes no network request for these features and has no server-side storage.
Retention and deletion
- Settings and profiles remain in local extension storage until the user changes or removes them, clears extension data, or uninstalls the extension.
- Temporary Profile Editor session data is stored in session storage and can also be cleared from the editor.
- Generated values are not retained by the extension merely because they were inserted into a webpage.
- Exported configuration JSON files are created only when the user explicitly requests an export and are saved to the location chosen by the browser or user. They can contain user-authored templates and fixed values.
Permissions
The Free edition currently requests:
-
storage— to keep local settings and profiles; -
contextMenus— to expose the explicit fill selected field context-menu action; -
access to webpage content through its
<all_urls>content-script match — to detect and fill form fields on pages where the user chooses to use the extension.
The extension does not request the history,
cookies, downloads, identity,
or tabs permissions.
Security and remote code
The extension uses Manifest V3, does not use remotely hosted
executable code, and does not use eval or
new Function.
The Free edition does not transmit handled user data over the network.
Chrome Web Store Limited Use
Lero Lero – Form Filler uses data obtained through Chrome extension capabilities only to provide or improve its disclosed single purpose and user-facing form-filling features.
Its use of information complies with the Chrome Web Store User Data Policy, including the Limited Use requirements .
Future Pro / AI editions
This policy describes the current Free edition.
Future paid or AI features that introduce different data handling, account, payment, synchronization, or network behavior must have their practices disclosed before those features are released.
They must not silently inherit this Free policy if their data handling differs.
Contact
For questions about this policy, use the support or contact channel published on the Lero Lero – Form Filler Chrome Web Store listing.