Hi,

Usually Firefox will not save passwords on sites that disallow saving. You could try to use an add-on like LastPass that has options to override that and other.

KB

Support

Before that, as a test you can try to check if it's working here. If not, then you can Reset Firefox and start afresh.

The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

1. Go to Firefox > Help > Troubleshooting Information.
2. Click the "Reset Firefox" button.
3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
4. Firefox will open with all factory defaults applied.

Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

Hello BATERIA

check it in Safe Mode, select "Start in Safe Mode" and see if this happen again, if not see: Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

thank you

Please mark "Solved" the answer that really solve the problem, to help others with a similar problem.

Also note that Firefox won't store new passwords in Private Browsing mode.

Also which Beta version are you using as the current is 17.0b4