6 Easy Tips to Fix Bitwarden Autofill not Working in Firefox

We use password managers not only to save our passwords securely but also to use other features provided by it, such as autofill, etc.

When certain features do not work, then the software itself becomes half-useful. Bitwarden users are facing something similar.

You will find several user reports on official forums and Reddit regarding Bitwarden autofill not working in the Firefox browser. In simple words, Bitwarden fails to autofill usernames and passwords on websites.

This could be frustrating as you might use a password manager for this specific feature. Luckily, we have a few tips to help you resolve the Bitwarden autofill not working in the Firefox issue. Let us check it out.

Why is Bitwarden autofill not working in Mozilla Firefox?

There aren’t any specific reasons why Bitwarden might fail to fill in your username and password in the Mozilla Firefox browser.

However, after our research, we discovered a few simple things that users have been overlooking that could be the potential cause for this issue, which we have mentioned below.

• Your browser isn’t up to date
• Corrupt cache files are triggering the problem
• The extension shortcut is missing
• You are using multiple password managers
• Bitwarden extension isn’t enabled

Now that you are aware of the common causes that could lead to Bitwarden autofill not working in the Firefox issue let us turn our attention towards how to resolve it.

Quick Tip:

A quick and low-effort way to eliminate this issue is to use a different browser. If you want a smooth transition with straightforward support to transfer all your bookmarks and preferences, use Opera One.

Opera One is a very responsive browser with a low error rate. You can install the Bitwarden Opera One extension directly from the official Opera One add-on store. Plus, this browser comes with a native AI.

Opera One

Use Bitwarden error-free with a responsive, secure, and easy-to-use browser!

Free Visit Website

How can I fix Bitwarden autofill not working in Firefox issue?

1. Uninstall other password managers

It is essential to ensure you are not using multiple password managers in the Firefox browser.

If you are using multiple password managers, this could conflict with the performance of each other. Many important functions, such as autofill, won’t work, as the browser may get confused about which password manager to use for the specific task.

So, if you are using multiple password managers, uninstall all of them except Bitwarden, and make sure Bitwarden is the only password manager installed.

2. Update Firefox

1. Open Firefox.
2. Click on the 3-line menu icon on the top toolbar.
3. Head to Help, then to About Firefox.
4. Firefox will automatically check for new updates and if it detects one, will install it.
5. After the download is complete, click on the Restart to update Firefox button.

3. Clear cookies and cache

1. Launch Firefox.
2. Click on the 3-line menu icon.
3. Click on Settings.
4. From the left pane, select Privacy & Security.
5. Under the Cookies and Site Data section hit the Clear Data button.
6. Make sure to check the boxes next to Cookies and Site Data and Cache Web Content.
7. Hit the Clear button.

4. Check if the extension shortcut is missing

1. Open Firefox.
2. In the address bar, enter the below address and press Enter: about:addons
3. From the left pane, select Extension.
4. Hit the cog wheel Settings icon next to the Manage Your Extensions heading.
5. Select the Manage Extension Shortcuts option.
6. Check if the Auto-fill the last used login for the current website is set or not.

5. Check if the extension is enabled or not

1. Open Firefox.
2. Click on the 3-line menu icon.
3. Select Add-ons and themes.
4. Check if Bitwarden is enabled or not. If not, then enable it.

6. Manually trigger autofill function

1. Head to the website where you want to use the Bitwarden autofill function.
2. Right-click on the username and password field.
3. Select Bitwarden, then Autofill.
4. Hit the Login button and check if this fixes the issue.

This isn’t a permanent solution, but it can work wonders if the autofill feature isn’t working automatically.

If nothing works, then you can check out other password managers that have the same autofill feature and get rid of the issue. Many users also reported Cannot decrypt error in Bitwarden, but we covered it in a separate guide.

Let us know in the comments below which one of the above solutions helped you resolve the Bitwarden autofill not working in the Firefox problem.