what's the highest rated and most popular form-filler for Firefox (Debian-Linux)?

As of my last knowledge update in October 2023, one of the most popular and highly-rated form-fillers for the Firefox browser, including on Debian Linux, is **"Firefox's built-in Password Manager and Form Autofill"**. Firefox has a built-in feature that saves your form data, including passwords and addresses, and can autofill them for future use. It is user-friendly and well-integrated into the browser. If you're looking for an extension with additional features, consider the following popular options: 1. **LastPass**: A widely-used password manager that offers form-filling capabilities along with password storage. It has a free version with robust features. 2. **Bitwarden**: An open-source password manager that is highly rated for its security and features. It also supports form filling and offers a free tier. 3. **Dashlane**: Another robust password manager that includes form-filling features. It is user-friendly but may have limitations in its free version. 4. **RoboForm**: A longstanding player in the password manager space, RoboForm offers comprehensive form-filling options. When choosing a form-filler or password manager, consider your specific needs such as security features, ease of use, and whether you need syncing across devices. Always check current reviews and user ratings in the Firefox Add-ons store or relevant forums, as user feedback can change over time.