Hi there! It sounds like you're having trouble using the "save login" feature to log in to a website on Firefox for Android. No worries, I'm here to help! To fix this, you can try a couple of things. First, make sure you have the latest version of Firefox installed. Sometimes updates can address such issues. Next, check if the website allows saving login information. Some websites have features that prevent saving login details for security reasons. If that's not the case, you might want to clear your browser cache and cookies, and then try again. If the issue persists, you could also try disabling any extensions you might have that could be interfering with this feature. Give these steps a shot and let me know how it goes! If you need more help, feel free to ask.