KeeperFill for Firefox
Installation and usage instructions for KeeperFill for Firefox.

Installation & Setup

(1) To download the latest Firefox extension, use the link below:
(2) We recommend that you disable your browser's built-in password saving features.
    Install KeeperFill from Firefox Browser Add-Ons.
    In the upper right corner of your browser, click on the Firefox menu icon (three horizontal lines).
    Click Options from the dropdown menu
    Click on the Privacy & Security section.
    Under Logins and Passwords, uncheck the box next to "Ask to save logins and passwords for websites".
(3) To ensure you are using the latest version, turn on the auto-update feature.
    From the Firefox Browser menu, select Add-ons
    Click the gear icon and from the dropdown menu, click Update Add-ons Automatically.
Update Ad-Ons Automatically
(4) To allow Keeper to operate in Private Mode please follow these steps:
Click on Addons from the right side hamburger menu:
Click on "Manage" under Keeper menu:
Click to Allow in private browsing:
Private mode on Firefox only currently works if you login from the Web Vault. Logging in directly from the browser extension will not login to Keeper.

Video Overview

KeeperFill for Firefox

Logging In

Consumer customers can log in to the Keeper browser extension with their Keeper email address and Master Password. If you are part of an Enterprise rollout, you may be directed to log in with your Enterprise SSO Login credentials.
On the Firefox browser, the extension will automatically log in when you log in to the Web Vault. Other web browsers may require you to log in separately to the Vault and Browser Extension.
For customers who log in with SSO, click on the Enterprise SSO Login dropdown.
Select either Enterprise Domain and enter either the enterprise domain supplied by your Keeper Administrator or enter your Master Password.
For information on Device Approvals, click here.

Stay Logged In

When the Stay Logged setting is enabled, it allows you to stay logged into Keeper when you close out of your browser or even restart your computer. In order to use this feature you must first enable it in your extension's settings menu.
Click Settings, then toggle Stay Logged In "on".
Before you proceed, Keeper recommends that you first enable Auto-Logout in order to protect your vault in the case that you step away from your device while logged into Keeper.
The Stay Logged In feature is also compatible with the Keeper Web Vault and Desktop App and can be accessed via the Account Dropdown Menu > Settings > Security.

Searching the Vault

You can search for any website login or other information stored in your Keeper vault by clicking on the magnifying glass icon in the KeeperFill extension. The search feature is case insensitive and will match any record within your vault.

Autofill Passwords

Clicking the Keeper lock allows you to quickly fill and log in to a site. You can fill your login and password by clicking on the fill button or by clicking on Show More to fill individual fields.

Keyboard Shortcuts

If you prefer to use keyboard shortcuts instead of mouse clicks to make the process of auto filling your passwords even more seamless, follow the steps below:
    Navigate to the site you would like to log in to.
    Type command+shift+k (for Mac OS) or alt+k (for Windows).
    In the field provided, begin typing your search terms.
    Use the up and down arrows on your keyboard to find and highlight the record you are searching for.
    Use the enter key to quickly fill and log in to the site.

Multiple Account Selector

If you have multiple logins for the same website, click on the dropdown menu to expand the selection and display all of the matching records.

Matching Records

When logging in to a website, the Keeper Browser extension will provide a list of matching records. The matching is performed by looking at the "Website Address" field of the record as well as the custom fields.
The list of matching records is determined by looking at the URLs stored within your Keeper record. Once the list is generated, a series of logical steps determines the sort order of the selection list, and which specific record is selected as the default choice.
1. If the page you're visiting has a subdomain (e.g., then Keeper first looks at the subdomain for the closest match in your vault records. The best matches are sorted by the last time they were used.
2. After checking subdomain, Keeper looks at the "path" information (e.g. and compares it to the path stored within your Keeper record. The best matches are again sorted by the last time they were used.
3. If the page contains an email address on the screen (such as a pre-filled email field) then Keeper will pre-select the record from the subdomain and path criteria which contains the email field.
For the best record match, make sure that the "Website Address" field in the Keeper record matches the domain and path as close as possible to the target site.

Creating New Records

To create a new login for a website, click on Create New. Keeper will also offer to save passwords as you type them on a website login screen.

Importing Passwords

Click here to see instructions on how to import your browser stored passwords and export passwords from other password managers.

Creating Secure Passwords

Long, random passwords that are created for each login help protect your information and reduce your exposure to data breaches. Keeper generates and securely stores strong, random passwords for all of your sites and apps with the click of the dice.
This will NOT automatically change the website's existing login password. You must still visit the corresponding website's "Change Password" form to update the old password to match the new, stronger password. Click here to learn how to easily change your password with KeeperFill.

Changing Passwords

KeeperFill makes it easy to change your passwords. When a user visits a site's "Change Password" form, you will receive a prompt from Keeper asking if you would like help changing your password. By clicking Yes Keeper will run a wizard that walks you through a few quick steps to change your password and simultaneously update the record in your vault. These steps will include a series of prompts detailing the following actions:
    Autofill your old/current password
    Automatically generate and autofill a new secure password
    Confirm the changes and save them to your vault
The video below demonstrates how KeeperFill can help you change your password.
Changing Passwords with Keeper

Filling Custom Fields

To have Keeper automatically fill custom fields into login forms, simply create a custom field in your record, in the web vault with the name of the form field (e.g. "Account Number"). If the name matches the field on the screen near the form field, Keeper will fill it for you.
Filling Custom Fields
Mapping Custom Fields to Form Fields
To make sure KeeperFill is able to locate the record in your vault to fill, be sure to set the Website Address in your record to the same domain as the website (e.g. "").

One Record, Multiple Domains

Some sites have more than one domain (website address) that require the same login/password. If this is the case for any of your records, rather than creating an entirely separate record, users can store multiple website domains within one record. So no matter what domain you are logging in from, KeeperFill will recognize that domain as an alias and allow you to log in with the same stored credentials. To create a record containing multiple website domains, follow the steps below:
    While editing a record, click + Custom Field
    In "Custom Field Name" enter a name (e.g. Website Alias).
    In "Custom Field Value" enter the site's alternate domain name.
    To finish, click Save. You can continue to repeat this process for additional domain names by repeating the steps above.

Match on Subdomain Setting

The "Match on Subdomain" setting enables the Keeper browser extension to recognize and differentiate a record's subdomain (if present) from its domain. In doing so, only records that match the subdomain of the login page will be populated into the extension window.
Example: If a user has a record with a website address containing a subdomain and domain such as "" and another record with the website address containing only the domain "" and attempts to log in to ", the only record match that will appear is "".
To enable this setting follow the steps below, click Settings > Match on Subdomain then toggle it "on".

Two-Factor Codes (TOTP)

Records that have a stored Two-Factor Authentication Code (TOTP) can be filled through KeeperFill.
Two-Factor Codes Integration
Storing Two-Factor codes in the vault has several advantages:
    Keeper two-factor codes are more secure than using SMS text messages.
    Two-factor codes stored in Keeper are protected with strong Zero-Knowledge encryption.
    They can be auto-filled quickly while logging in to a site, saving time and reducing friction.
    Keeper records are securely backed up so if you lose a device you don’t have to reset all the codes.
    Keeper records are shareable. If you have multiple people that need to log in with the same credentials, they won’t need to track down the person who has the only device containing the code.
Two-Factor codes can also be filled from the context menu.
Two-Factor Code From Context Menu

Payment Cards & Identity

KeeperFill can also fill payment cards and identity information that are stored in your Vault. Payment cards are only available to fill at websites in which you currently have a Keeper record for.

KeeperFill Right-Click Context Menu

If a website form field does not display the Keeper lock icon, users can right-click on the field to produce a context menu with KeeperFill features. The context menu offers the ability to fill logins, payment cards, addresses and create new passwords.
Right-Click Context Menu
The KeeperFill Right-Click context menu provides the following features:
    Filling record login fields
    Filling payment card fields
    Filling billing and address fields
    Filling TOTP Codes
    Creating a new record
    Opening the extension window
    Launching the Web Vault
    Logging out of your account
Note: For security reasons, only records with a matching domain name will display in the selection list.
Identity Autofill
Payment Card Autofill
Learn more about Identity & Payments by visiting the Web Vault user guide.

Firefox and U2F Security Keys

While FIDO U2F support was added with the release of Firefox Quantum, the feature is turned off by default. In order to enable U2F support in Firefox Quantum, follow the steps below:
    Type "about:config" (without quotes) into the Firefox address bar and press Enter.
    Search for u2f.
    Double-click on security.webauth.u2f to enable U2F
Supported keys:
It’s important to understand that every FIDO U2F implementation can vary from the official specifications. Some sites supporting FIDO U2F have made accommodations for the incompleteness of Firefox’s implementation, but some have not. In other situations, some services may not work with Firefox Quantum because of a service-specific implementation.


Uninstalling Keeper's Browser Extension from Firefox does not effect the data stored in Keeper's Cloud Security Vault.
    Right click on the Keeper icon in the top right corner of your browser.
    Click Remove Extension.
    When the pop-up menu appears, click Remove.
If you need assistance, please contact the Keeper support team at
Last modified 1mo ago